' 
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving
%DV
Vitamin C (as Ascorbic Acid, Acerola Cherry, Rose Hips)
1,000 mg
1,111%
The product is found useful for the following medical conditions
Chronic Cough
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.8
9.5
Effective for cough
Most Useful Review
It works for chronic cough. I'm 45 and take 2000mg vitamin C and 1000mg vitamin B5 twice daily for my skin and to strengthen my immune system, along with a multivitamin in the morning. When I experience a chronic cough and burning throat, I take 2000mg to 3000mg of vitamin C and 2000mg of vitamin B5 every two hours until it stops, and it always works. I hope this helps.
Cardiovascular Disease
SCIENTIFIC SCORE
Moderately Effective
Based on 4 Researches
8
USERS' SCORE
Good
Based on 4 Reviews
8.6
7
Vitamin C enhances NK cell proliferation
Proliferation capability of natural killer cells upon cytokines stimulation correlated negatively with serum lactate dehydrogenase level in coronary artery disease patients.
Most Relevant Research
We explored the effects of vitamin C on natural killer (NK) cell activity in patients with coronary artery disease (CAD). Our research involved isolating NK cells from 29 CAD patients and treating them with various stimulatory factors, including ascorbic acid—better known as vitamin C.
What we found was quite interesting: when NK cells were treated with ascorbic acid, there was a significant increase in their ability to proliferate. This meant that the NK cells were more active and potentially more effective in responding to threats in the body, which is vital for those dealing with heart conditions.
Furthermore, we measured serum lactate dehydrogenase (LDH) levels, discovering a negative correlation between LDH and NK cell activity. Higher LDH levels seemed to indicate lower proliferation capability in NK cells influenced by interleukins.
Overall, our study suggests that vitamin C could play a positive role in enhancing immune function in CAD patients by promoting NK cell proliferation. However, it's important to note that while vitamin C shows promise, further research is needed to fully understand its impact on cardiovascular health and immune regulation.
What we found was quite interesting: when NK cells were treated with ascorbic acid, there was a significant increase in their ability to proliferate. This meant that the NK cells were more active and potentially more effective in responding to threats in the body, which is vital for those dealing with heart conditions.
Furthermore, we measured serum lactate dehydrogenase (LDH) levels, discovering a negative correlation between LDH and NK cell activity. Higher LDH levels seemed to indicate lower proliferation capability in NK cells influenced by interleukins.
Overall, our study suggests that vitamin C could play a positive role in enhancing immune function in CAD patients by promoting NK cell proliferation. However, it's important to note that while vitamin C shows promise, further research is needed to fully understand its impact on cardiovascular health and immune regulation.
9.5
Reduces cold symptoms
Most Useful Review
I love vitamin C, which is essential for combating cardiovascular disease and boosting immunity. It’s crucial if you experience symptoms like bleeding gums and dry skin. During my recent Covid illness, I doubled the dose and had a mild experience. I recommend keeping it in your medicine cabinet and taking it regularly.
Common Cold
SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.4
USERS' SCORE
Good
Based on 130 Reviews
8.6
8
Vitamin C reduces cold severity
Vitamin C reduces the severity of common colds: a meta-analysis.
Most Relevant Research
We explored how vitamin C affects the severity of common colds through a comprehensive review of available studies. By including only randomized, placebo-controlled trials where participants received at least 1 gram of vitamin C daily, we aimed to investigate both the overall duration of colds and the intensity of symptoms experienced.
Our analysis found that vitamin C significantly reduced the severity of cold symptoms by about 15%. Interestingly, it appears that the benefits are more pronounced for those experiencing severe symptoms compared to mild ones. In specific comparisons, vitamin C didn’t substantially affect the duration of mild symptoms but had a notable impact on how long severe symptoms lasted.
This insight is crucial, as the common cold often leads to absenteeism at work and school, with more severe symptoms playing a key role in this setback. By highlighting vitamin C's greater effectiveness against intense cold symptoms, we suggest that future research should continue to look into how this vitamin can be utilized in managing cold severity.
Our analysis found that vitamin C significantly reduced the severity of cold symptoms by about 15%. Interestingly, it appears that the benefits are more pronounced for those experiencing severe symptoms compared to mild ones. In specific comparisons, vitamin C didn’t substantially affect the duration of mild symptoms but had a notable impact on how long severe symptoms lasted.
This insight is crucial, as the common cold often leads to absenteeism at work and school, with more severe symptoms playing a key role in this setback. By highlighting vitamin C's greater effectiveness against intense cold symptoms, we suggest that future research should continue to look into how this vitamin can be utilized in managing cold severity.
8.8
Immune system boost
Most Useful Review
Vitamin C strengthens the immune system, guarding against viruses and bacteria while speeding up wound healing. This product features an extended release formula, ensuring long-lasting availability of vitamin C. My family takes it for small courses in autumn and spring. I highly recommend it.
Food Poisoning
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Good
Based on 1 Review
8.6
9
Vitamin C alleviates food poisoning
Vitamin C alleviates acute enterocolitis in Campylobacter jejuni infected mice.
Most Relevant Research
To explore the effects of vitamin C on food poisoning caused by Campylobacter jejuni, we conducted a study using mice specifically bred to develop a condition similar to human campylobacteriosis. Mice were treated with synthetic vitamin C in their drinking water starting four days before they were infected with the bacteria. Our goal was to see if this treatment could lessen the severity of their symptoms.
Over the course of our research, we found that the mice receiving vitamin C had lower levels of the bacteria in their intestines. They also experienced less severe inflammation and other symptoms associated with infections. Interestingly, the benefits of vitamin C extended beyond just the intestines; we noticed reduced inflammatory responses in other organs such as the liver, kidneys, and lungs.
This suggests that vitamin C could be a promising option for both preventing and treating acute campylobacteriosis. Our findings highlight the potential health benefits of this vitamin and its role in managing foodborne illnesses like those triggered by Campylobacter jejuni.
Over the course of our research, we found that the mice receiving vitamin C had lower levels of the bacteria in their intestines. They also experienced less severe inflammation and other symptoms associated with infections. Interestingly, the benefits of vitamin C extended beyond just the intestines; we noticed reduced inflammatory responses in other organs such as the liver, kidneys, and lungs.
This suggests that vitamin C could be a promising option for both preventing and treating acute campylobacteriosis. Our findings highlight the potential health benefits of this vitamin and its role in managing foodborne illnesses like those triggered by Campylobacter jejuni.
9.5
Boosts immunity
Most Useful Review
I purchased vitamin C to complement collagen and felt more cheerful and energetic afterwards. If taken at the onset of cold symptoms, it can prevent illness. In my city, I found Vit C extended release, which was three times more expensive with 60 capsules per jar.
High Cholesterol
SCIENTIFIC SCORE
Moderately Effective
Based on 6 Researches
8
USERS' SCORE
Good
Based on 3 Reviews
8.6
9
Vitamin C reduces cholesterol levels
Effect of Using Vitamin C Supplementation on Performance, Blood Parameters, Carcass Characteristics and Meat Quality of Broiler Chickens Under Heat Stress Condition: A Meta-Analysis.
Most Relevant Research
We explored how vitamin C supplementation affects cholesterol levels in broiler chickens, particularly under heat stress conditions. Through a thorough meta-analysis of 35 studies conducted between 1985 and 2023, we assessed various performance metrics, including blood parameters, carcass characteristics, and overall meat quality.
Our findings revealed that vitamin C significantly reduced cholesterol levels in the broiler chickens subjected to heat stress. Specifically, the study reported a notable decrease in cholesterol concentrations, with a standard mean difference of -0.976, indicating a strong beneficial effect of vitamin C in managing high cholesterol.
Additionally, we noticed improvements in body weight and average daily gain among chickens receiving vitamin C when compared to those that did not. While vitamin C did not significantly impact feed intake or breast meat quality, it emerged as a valuable antioxidant that can help lower blood triglycerides and reduce cholesterol, thus promoting better overall health and growth in broilers during stressful conditions.
Ultimately, this meta-analysis supports the use of vitamin C at a recommended dosage of 250 mg/kg as an effective growth promoter and antioxidant in broiler diets under heat stress, directly influencing cholesterol management.
Our findings revealed that vitamin C significantly reduced cholesterol levels in the broiler chickens subjected to heat stress. Specifically, the study reported a notable decrease in cholesterol concentrations, with a standard mean difference of -0.976, indicating a strong beneficial effect of vitamin C in managing high cholesterol.
Additionally, we noticed improvements in body weight and average daily gain among chickens receiving vitamin C when compared to those that did not. While vitamin C did not significantly impact feed intake or breast meat quality, it emerged as a valuable antioxidant that can help lower blood triglycerides and reduce cholesterol, thus promoting better overall health and growth in broilers during stressful conditions.
Ultimately, this meta-analysis supports the use of vitamin C at a recommended dosage of 250 mg/kg as an effective growth promoter and antioxidant in broiler diets under heat stress, directly influencing cholesterol management.
9.5
Effective daily protection
Most Useful Review
This product provides effective, time-released protection all day.
Multiple Sclerosis
SCIENTIFIC SCORE
Questionable
Based on 7 Researches
6.9
USERS' SCORE
Good
Based on 1 Review
8.6
3
No causal effect of vitamin C
Plasma circulating vitamin C levels and risk of multiple sclerosis: a two-sample Mendelian randomization analysis.
Most Relevant Research
We explored the relationship between vitamin C (VitC) levels and the risk of developing multiple sclerosis (MS) through a comprehensive analysis. Using information from large-scale studies, we employed a two-sample Mendelian randomization approach to determine if there was a causal link between plasma VitC levels and MS risk.
Our analysis revealed that increased levels of circulating vitamin C, specifically a 1 standard deviation increase (approximately 20 mmol/L), did not lead to a significant reduction in MS risk. The odds ratio was 0.88, with a confidence interval that ranged from 0.65 to 1.18, and a P-value of 0.3822 indicated no strong evidence of a protective effect.
We reinforced our findings with additional methods, including the weighted median and MR-Egger approaches. Overall, the results suggest that vitamin C supplementation does not have a meaningful impact on reducing the risk of developing multiple sclerosis, underscoring the need for further research to investigate other potential avenues for prevention.
Our analysis revealed that increased levels of circulating vitamin C, specifically a 1 standard deviation increase (approximately 20 mmol/L), did not lead to a significant reduction in MS risk. The odds ratio was 0.88, with a confidence interval that ranged from 0.65 to 1.18, and a P-value of 0.3822 indicated no strong evidence of a protective effect.
We reinforced our findings with additional methods, including the weighted median and MR-Egger approaches. Overall, the results suggest that vitamin C supplementation does not have a meaningful impact on reducing the risk of developing multiple sclerosis, underscoring the need for further research to investigate other potential avenues for prevention.
9.5
Improved recovery
Most Useful Review
I have multiple sclerosis and Crohn's disease. This product has helped me to avoid colds and flu, and when I do fall ill, the severity is reduced, and I recover more quickly. I am very pleased with this product.
Sleep Apnea
SCIENTIFIC SCORE
Possibly Effective
Based on 11 Researches
7.5
USERS' SCORE
Good
Based on 1 Review
8.6
9
Vitamin C improves sleep apnea endothelial function
Antioxidant vitamin C improves endothelial function in obstructive sleep apnea.
Most Relevant Research
We evaluated how vitamin C might improve endothelial function in patients with obstructive sleep apnea (OSA). In our study, we compared 10 individuals with untreated OSA to 10 matched control subjects without sleep issues. We measured how well blood vessels reacted to increased blood flow, known as flow-mediated dilation (FMD), using ultrasound before and after administering vitamin C.
Our findings revealed a significant difference: baseline FMD was lower in OSA patients compared to the control group. However, after an intravenous injection of vitamin C, the FMD in OSA patients improved dramatically, reaching levels similar to those seen in the healthy controls. Interestingly, vasoreactivity in the control subjects remained unchanged.
These results suggest that oxidative stress might be a key factor contributing to the endothelial dysfunction experienced by individuals with OSA. The positive response to vitamin C opens up exciting possibilities for exploring antioxidant treatments in managing cardiovascular issues related to OSA.
Our findings revealed a significant difference: baseline FMD was lower in OSA patients compared to the control group. However, after an intravenous injection of vitamin C, the FMD in OSA patients improved dramatically, reaching levels similar to those seen in the healthy controls. Interestingly, vasoreactivity in the control subjects remained unchanged.
These results suggest that oxidative stress might be a key factor contributing to the endothelial dysfunction experienced by individuals with OSA. The positive response to vitamin C opens up exciting possibilities for exploring antioxidant treatments in managing cardiovascular issues related to OSA.
9.5
Improved sleep quality
Most Useful Review
Solaray supplements are of remarkable quality. This vitamin C has genuinely aided my struggle with sleep apnea for over nine years. The 12-hour time-release formulation, enriched with rosehip and acerola, feels effective. I also appreciate the smaller tablet size compared to others, making it easier for me to take. Since I began using it, my immune response has strengthened, and my skin has improved significantly. I trust Solaray for their excellent ingredients and will continue using their products regularly.
Arthritis
SCIENTIFIC SCORE
Possibly Effective
Based on 2 Researches
7.5
USERS' SCORE
Good
Based on 1 Review
8.6
7
Vitamin C's role in arthritis management
The role of vitamins D, B12, C, and K in modulating inflammation and disease management in rheumatoid arthritis: a comprehensive review.
Most Relevant Research
We explored the role of vitamin C in addressing arthritis symptoms, particularly its effect on joint inflammation. Vitamin C is known for its antioxidant properties, and we found that it plays a crucial role in collagen synthesis. This feature is important as collagen forms the structural basis of our joints.
What excited us was the possibility that vitamin C could help reduce inflammation in patients with rheumatoid arthritis. Given that inflammation is a major factor in the discomfort and damage associated with this condition, any reduction could significantly enhance the quality of life for those affected.
However, while vitamin C shows promise due to its supportive functions, we must remember that the evidence concerning its direct effectiveness on arthritis specifically is still evolving. The correlation between vitamin C intake and reduced joint inflammation points to a beneficial role, but more detailed studies are necessary to solidify these findings and determine optimal dosages.
Overall, our review highlights that while vitamin C may indeed support joint health and aid in managing inflammation, further research is essential to fully understand its impact and to evaluate how it can be integrated into arthritis management strategies effectively.
What excited us was the possibility that vitamin C could help reduce inflammation in patients with rheumatoid arthritis. Given that inflammation is a major factor in the discomfort and damage associated with this condition, any reduction could significantly enhance the quality of life for those affected.
However, while vitamin C shows promise due to its supportive functions, we must remember that the evidence concerning its direct effectiveness on arthritis specifically is still evolving. The correlation between vitamin C intake and reduced joint inflammation points to a beneficial role, but more detailed studies are necessary to solidify these findings and determine optimal dosages.
Overall, our review highlights that while vitamin C may indeed support joint health and aid in managing inflammation, further research is essential to fully understand its impact and to evaluate how it can be integrated into arthritis management strategies effectively.
10
Immediate relief experience
Most Useful Review
Instant relief! I get instant relief from my arthritis flare-ups; 5000 mg is definitely the way to go.
Flu
SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7.2
USERS' SCORE
Good
Based on 1 Review
8.6
8
Vitamin C mitigates flu pneumonia
A new mechanism of vitamin C effects on A/FM/1/47(H1N1) virus-induced pneumonia in restraint-stressed mice.
Most Relevant Research
We examined the effects of vitamin C on pneumonia caused by the influenza virus, specifically the H1N1 strain, in mice under stress. The study found that when exposed to restraint stress, the mice experienced increased mortality and more severe pneumonia symptoms.
However, by giving them oral vitamin C at doses of 125 and 250 mg/kg, we observed a significant reduction in these severe outcomes. Vitamin C seemed to modulate the expression of certain genes related to the immune response, such as MAVS and IRF3, and increased the expression of NF-κB, which plays a key role in the body's antiviral defense.
Our research suggested that vitamin C's protective effects might stem from its ability to inhibit excess cortisol production in the adrenal gland, which is often elevated due to stress. By lowering cortisol levels, vitamin C may help reduce susceptibility to influenza infections, making it a potential ally during the flu season, especially for those experiencing stress.
Through these findings, we highlighted a new mechanism for how vitamin C can be beneficial during influenza infections, particularly for those who are feeling overwhelmed.
However, by giving them oral vitamin C at doses of 125 and 250 mg/kg, we observed a significant reduction in these severe outcomes. Vitamin C seemed to modulate the expression of certain genes related to the immune response, such as MAVS and IRF3, and increased the expression of NF-κB, which plays a key role in the body's antiviral defense.
Our research suggested that vitamin C's protective effects might stem from its ability to inhibit excess cortisol production in the adrenal gland, which is often elevated due to stress. By lowering cortisol levels, vitamin C may help reduce susceptibility to influenza infections, making it a potential ally during the flu season, especially for those experiencing stress.
Through these findings, we highlighted a new mechanism for how vitamin C can be beneficial during influenza infections, particularly for those who are feeling overwhelmed.
9.5
Most effective vitamin
Most Useful Review
I’ve tried many brands but keep coming back to this one. I take one capsule twice a day and have found it most effective against colds and the flu. If vitamin C isn’t working, adjust your dosage to bowel tolerance to see benefits. After decades of experience, it’s clear this one is the most potent for me.
Allergies
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 17 Reviews
8.5
8
Pleuran and Vitamin C aid asthma
Beneficial effects of pleuran on asthma control and respiratory tract-infection frequency in children with perennial asthma.
Most Relevant Research
We conducted a thorough evaluation of how vitamin C, when combined with pleuran, impacts asthma control and respiratory issues in children suffering from perennial asthma. The study was meticulously designed as a double-blind, placebo-controlled trial involving 230 children aged 7 to 17 years. This means that neither the participants nor the researchers knew who was receiving the active treatment or the placebo, ensuring the findings were reliable.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
The results were promising, especially for children under 12 years. They showed significant improvements in asthma control compared to those receiving only the placebo treatment. Meanwhile, older children (12 years and above) experienced fewer respiratory infections with the combination treatment. Overall, by the end of the 48 weeks, a majority of children on the pleuran and vitamin C treatment reported better asthma control compared to those on the placebo.
While the combination of pleuran and vitamin C was indeed beneficial for managing asthma, we must note that the study did not specifically isolate the effect of vitamin C alone on allergies or asthma. Thus, it is hard to draw definitive conclusions about vitamin C's effectiveness independently from pleuran. However, the approach suggested that using these supplements together could offer a helpful boost in managing asthma symptoms.
9.5
Skin and allergies
Most Useful Review
I originally bought it for my weak skin and acne. I now take two tablets daily, and my skin has firmed up. Vitamin C appears beneficial for allergies and stress; I’ll continue taking it with my family.
Autoimmune Disorder
SCIENTIFIC SCORE
Moderately Effective
Based on 11 Researches
8
USERS' SCORE
Good
Based on 6 Reviews
8.5
9
Vitamin C impacts autoimmune response
Ascorbic acid alleviates rheumatoid arthritis by inhibiting the production of autoantibodies.
Most Relevant Research
We investigated how vitamin C, also known as ascorbic acid, might impact autoimmune disorders like rheumatoid arthritis. Through a study involving a mouse model of collagen-induced arthritis, we administered vitamin C or a placebo solution and observed the effects on the immune response and disease progression.
Notably, the research showed that mice given vitamin C experienced a significant delay in the onset of arthritis and a reduction in disease severity. This suggests that vitamin C can play a critical role in managing autoimmune conditions by minimizing the production of autoantibodies, which are harmful antibodies that mistakenly attack the body's tissues.
Our findings revealed that vitamin C reduced the number of plasma cells and decreased antibody production in response to immunization. This indicates that vitamin C influences the immune system's response at a cellular level, helping to prevent the emergence of autoreactive plasma cells. We also discovered that the mechanism behind this effect involved inhibiting the Stat3 signaling pathway, leading to less activation of autoreactive immune components.
Ultimately, these results highlight the potential of vitamin C not just as a nutrient, but as a strategic tool in managing autoimmune disorders. By simply supplementing with vitamin C, there may be a way to intervene positively in the progression of diseases like rheumatoid arthritis.
Notably, the research showed that mice given vitamin C experienced a significant delay in the onset of arthritis and a reduction in disease severity. This suggests that vitamin C can play a critical role in managing autoimmune conditions by minimizing the production of autoantibodies, which are harmful antibodies that mistakenly attack the body's tissues.
Our findings revealed that vitamin C reduced the number of plasma cells and decreased antibody production in response to immunization. This indicates that vitamin C influences the immune system's response at a cellular level, helping to prevent the emergence of autoreactive plasma cells. We also discovered that the mechanism behind this effect involved inhibiting the Stat3 signaling pathway, leading to less activation of autoreactive immune components.
Ultimately, these results highlight the potential of vitamin C not just as a nutrient, but as a strategic tool in managing autoimmune disorders. By simply supplementing with vitamin C, there may be a way to intervene positively in the progression of diseases like rheumatoid arthritis.
9.5
Improved skin health
Most Useful Review
Solaray is of high quality! It greatly aids sleep disorders, strengthens mucous membranes, and enhances skin complexion. I strongly believe all Solaray’s supplements are outstanding. This vitamin C's formulation, including rosehip and acerola, is effective and is gently released over 12 hours. It helped me overcome a severe sleep disorder lasting nine and a half years. Thanks to its antioxidant property, I also enjoy improved immunity and have stronger mucous membranes, resulting in fewer colds. My skin glows daily—I'm truly grateful.
Blood Clot
SCIENTIFIC SCORE
Questionable
Based on 6 Researches
6.7
USERS' SCORE
Good
Based on 3 Reviews
8.5
9
Vitamin C enhances blood clotting
Ascorbic acid improves thrombotic function of platelets during living donor liver transplantation by modulating the function of the E3 ubiquitin ligases c-Cbl and Cbl-b.
Most Relevant Research
We sought to understand how ascorbic acid, commonly known as vitamin C, impacts blood clotting during living donor liver transplantation (LDLT). In our study, we analyzed blood samples from 21 recipients before and after their surgeries.
We employed a well-structured approach, using rotational thromboelastography (TEG) and western blot analysis to scrutinize fibrinolysis and the functionality of specific proteins involved in clotting. Blood samples were tested in three distinct groups, one receiving vitamin C, to see its effects on clot rigidity and fibrinolysis.
Our findings revealed that ascorbic acid notably reduced fibrinolysis, which refers to the breakdown of blood clots, and improved the rigidity of the clots formed. Additionally, we observed that levels of a protein called Cbl-b were higher in those receiving vitamin C, while another protein, c-Cbl, showed reduced phosphorylation. These functional changes might explain how vitamin C supports better clotting during surgeries.
This study indicates that vitamin C could be a beneficial treatment to consider during LDLT to manage hyperfibrinolysis, thus promoting better outcomes for patients undergoing these complex procedures.
We employed a well-structured approach, using rotational thromboelastography (TEG) and western blot analysis to scrutinize fibrinolysis and the functionality of specific proteins involved in clotting. Blood samples were tested in three distinct groups, one receiving vitamin C, to see its effects on clot rigidity and fibrinolysis.
Our findings revealed that ascorbic acid notably reduced fibrinolysis, which refers to the breakdown of blood clots, and improved the rigidity of the clots formed. Additionally, we observed that levels of a protein called Cbl-b were higher in those receiving vitamin C, while another protein, c-Cbl, showed reduced phosphorylation. These functional changes might explain how vitamin C supports better clotting during surgeries.
This study indicates that vitamin C could be a beneficial treatment to consider during LDLT to manage hyperfibrinolysis, thus promoting better outcomes for patients undergoing these complex procedures.
9.5
Effectively thins blood
Most Useful Review
The husband had a mild form of Covid, and at over 65, it was impressive that he recovered with the help of vitamins. I administered 5000 units, 15,000 units of vitamin D, omega, and zinc for a week, then reduced the dosage. I also contracted Covid but was asymptomatic, thanks to vitamins since 2019. The dosage is excellent, with no heartburn or allergic reactions. I take it daily after breakfast and highly recommend it!
Chronic Fatigue Syndrome
SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7
USERS' SCORE
Good
Based on 22 Reviews
8.5
7
Vitamin C aids immune function
The clinical course of interstitial pneumonia alias chronic fatigue syndrome under the control of megadose vitamin C infusion system with dehydroepiandrosterone-cortisol annex.
Most Relevant Research
We examined how a combination of megadose vitamin C infusions and other treatments might help manage chronic fatigue syndrome, particularly in the context of interstitial pneumonia. Our findings were based on nearly a decade of treating patients, allowing us to gather valuable insights.
We observed that the long-term use of this treatment system significantly reduced the risk of pneumonia recurrence. It also appeared to help prevent the emergence of certain cancers in older patients suffering from interstitial pneumonia. Surprisingly, we found a link between interstitial pneumonia and an increased risk of depression, likely driven by prolonged glucocorticoid use.
While some patients showed promise under this treatment, those battling both interstitial pneumonia and depression responded less favorably. We suggested that increasing the amount of dehydroepiandrosterone in the treatment could be beneficial. Throughout our experience, we noted that the characteristics of chronic fatigue syndrome align closely with those of interstitial pneumonia, arguing against the notion that they should be viewed as separate conditions.
Overall, our approach not only alleviated inflammation but did not suppress the fibrotic processes in the long run. We made modifications to the treatment to lower the risks of vascular complications. The main strength of our treatment lies in creating a hormonal environment that helps tackle immune deficiencies using vitamin C, which faces lower resistance in the body compared to steroid treatments.
We observed that the long-term use of this treatment system significantly reduced the risk of pneumonia recurrence. It also appeared to help prevent the emergence of certain cancers in older patients suffering from interstitial pneumonia. Surprisingly, we found a link between interstitial pneumonia and an increased risk of depression, likely driven by prolonged glucocorticoid use.
While some patients showed promise under this treatment, those battling both interstitial pneumonia and depression responded less favorably. We suggested that increasing the amount of dehydroepiandrosterone in the treatment could be beneficial. Throughout our experience, we noted that the characteristics of chronic fatigue syndrome align closely with those of interstitial pneumonia, arguing against the notion that they should be viewed as separate conditions.
Overall, our approach not only alleviated inflammation but did not suppress the fibrotic processes in the long run. We made modifications to the treatment to lower the risks of vascular complications. The main strength of our treatment lies in creating a hormonal environment that helps tackle immune deficiencies using vitamin C, which faces lower resistance in the body compared to steroid treatments.
9.5
Fatigue reduction
Most Useful Review
I recently started taking this vitamin C1000 alongside B complex in the morning and niacin at night. It’s very effective; I feel refreshed, less fatigued, and my skin is much clearer.
Gout
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 1 Review
8.5
8
Dietary Vitamin C and Gout
Association between dietary vitamin C intake and gout among American adults.
Most Relevant Research
We investigated the potential relationship between dietary vitamin C intake and gout among American adults using data from the National Health and Nutrition Examination Survey conducted between 2013 and 2018. This study included participants over the age of 20 and looked at various factors, including the incidence of gout and levels of vitamin C intake.
Our findings revealed that 5% of the 12,589 participants reported experiencing gout. Interestingly, those consuming higher amounts of dietary vitamin C showed a lower likelihood of developing gout. Specifically, individuals in the highest intake group had an odds ratio of 0.77 for having gout, suggesting an inverse relationship between vitamin C intake and gout occurrence.
We noted that this relationship exhibited an L-shaped pattern, indicating that increased vitamin C consumption may be linked to reduced gout risk, particularly among different sex groups. However, when we examined vitamin C supplements, no significant association with gout was observed. Overall, our research highlights the potential benefits of dietary vitamin C in preventing gout, while underscoring the need for more focused studies in this area.
Our findings revealed that 5% of the 12,589 participants reported experiencing gout. Interestingly, those consuming higher amounts of dietary vitamin C showed a lower likelihood of developing gout. Specifically, individuals in the highest intake group had an odds ratio of 0.77 for having gout, suggesting an inverse relationship between vitamin C intake and gout occurrence.
We noted that this relationship exhibited an L-shaped pattern, indicating that increased vitamin C consumption may be linked to reduced gout risk, particularly among different sex groups. However, when we examined vitamin C supplements, no significant association with gout was observed. Overall, our research highlights the potential benefits of dietary vitamin C in preventing gout, while underscoring the need for more focused studies in this area.
8.8
Gout relief achieved
Most Useful Review
Solaray Vitamin C is excellent, particularly as it is time-released. Since increasing my water intake and taking these, my gout in the fingers improved within two weeks. This is the best vitamin C I have tried. The packaging is also well designed.
Pneumonia
SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 1 Review
8.5
8.3
Rapid recovery
Most Useful Review
I found that taking 1000 mg of Vitamin C significantly aided my recovery from pneumonia. The combination of high doses of Vitamins C and D boosted my immune system, helping me to improve quickly; my fever lasted only four days. Although normally, such a high dosage may cause a slight temperature, during illness, it's incredibly beneficial. The stomach handled these vitamins well, and with 100 capsules in a package, it's sufficient for the whole family.
Cold
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
USERS' SCORE
Good
Based on 1 Review
8.5
7
Effectiveness of Vitamin C on Colds
Vitamin C for the common cold and pneumonia.
Most Relevant Research
We explored the effects of vitamin C on the common cold and pneumonia by examining a range of studies. Interestingly, research on animals suggests that vitamin C may have protective effects against infections. However, when it comes to preventing colds in the general population, taking more than 1 gram of vitamin C per day didn’t show significant benefits.
But there's a twist! Participants engaged in heavy physical activities saw their cold incidence reduced by half with vitamin C supplementation. Additionally, regular intake of 1 gram or more daily was linked to a 15% decrease in cold severity. While some therapeutic trials showed inconsistent results when vitamin C was taken after cold symptoms appeared, two studies did indicate that larger doses (6-8 grams per day) could effectively shorten the duration of colds compared to lower doses.
Our investigation also looked into pneumonia, but the studies were conducted in unique settings, such as a boarding school and military recruits. This makes it hard to generalize the findings to the wider population. Yet, some trials suggested benefits for pneumonia patients. Finally, the role of vitamin C in treating COVID-19 and sepsis remains unclear, with mixed results.
Given that vitamin C seems to alleviate symptoms and shorten the duration of colds, while being safe and affordable, it might be worth considering a dose of 6-8 grams per day to see if it helps at an individual level.
But there's a twist! Participants engaged in heavy physical activities saw their cold incidence reduced by half with vitamin C supplementation. Additionally, regular intake of 1 gram or more daily was linked to a 15% decrease in cold severity. While some therapeutic trials showed inconsistent results when vitamin C was taken after cold symptoms appeared, two studies did indicate that larger doses (6-8 grams per day) could effectively shorten the duration of colds compared to lower doses.
Our investigation also looked into pneumonia, but the studies were conducted in unique settings, such as a boarding school and military recruits. This makes it hard to generalize the findings to the wider population. Yet, some trials suggested benefits for pneumonia patients. Finally, the role of vitamin C in treating COVID-19 and sepsis remains unclear, with mixed results.
Given that vitamin C seems to alleviate symptoms and shorten the duration of colds, while being safe and affordable, it might be worth considering a dose of 6-8 grams per day to see if it helps at an individual level.
8.8
Potent against colds
Most Useful Review
I've tried many other brands but keep returning to this one. I take one capsule twice daily and have been taking vitamin C for decades. It genuinely helps keep colds and the flu at bay. Of all the brands, even organic, this one seems the most potent. For some reason, it works better for me than another from Solaray that contains more bioflavonoids. If you find vitamin C doesn't seem effective, you may need to take it to bowel tolerance and then reduce that dose. This is what I had to do decades ago when I followed the standard American diet and wasn't aware of how to stay healthy. I used to take around 10 grams a day in divided doses.
Cold Sores
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Good
Based on 12 Reviews
8.4
9
Vitamin C alleviates cold sores
Topical treatment of recurrent mucocutaneous herpes with ascorbic acid-containing solution.
Most Relevant Research
We investigated how an ascorbic acid-based solution could help treat recurrent cold sores, also known as mucocutaneous herpes. This study was carefully designed as a randomized, double-blind, placebo-controlled trial, which helps ensure the results are reliable and trustworthy.
Participants used a strong solution of Ascoxal, rich in vitamin C, applied to their cold sores multiple times on the first day of the outbreak. We monitored various symptoms daily, including the severity of scabs, redness, and blisters, comparing the experiences of those using the vitamin C solution to a placebo group.
Our findings were promising: the active treatment resulted in fewer days with scabbing and less severe symptoms overall. Moreover, those using the vitamin C solution showed reduced persistence of scabs compared to the placebo group, along with a lower frequency of detected herpes virus after treatment.
In conclusion, this brief course of vitamin C treatment appears to have significant clinical benefits against cold sores, opening the door for future research on more extensive and frequent treatment regimes.
Participants used a strong solution of Ascoxal, rich in vitamin C, applied to their cold sores multiple times on the first day of the outbreak. We monitored various symptoms daily, including the severity of scabs, redness, and blisters, comparing the experiences of those using the vitamin C solution to a placebo group.
Our findings were promising: the active treatment resulted in fewer days with scabbing and less severe symptoms overall. Moreover, those using the vitamin C solution showed reduced persistence of scabs compared to the placebo group, along with a lower frequency of detected herpes virus after treatment.
In conclusion, this brief course of vitamin C treatment appears to have significant clinical benefits against cold sores, opening the door for future research on more extensive and frequent treatment regimes.
9.5
Cold sore relief
Most Useful Review
I took one jar of this product for three months, and during that period, I completely forgot about having any cold sores.
Heart Disease
SCIENTIFIC SCORE
Possibly Effective
Based on 8 Researches
7.8
USERS' SCORE
Good
Based on 4 Reviews
8.4
7
Vitamin C's uncertain heart benefits
Role of Vitamins in Cardiovascular Health: Know Your Facts - Part 1.
Most Relevant Research
We aimed to understand the role of vitamin C in heart disease and its potential cardioprotective effects. Vitamin C is renowned for its antioxidant properties, which means it fights off harmful substances in our body, potentially reducing the risk of heart issues.
Our analysis revealed that vitamin C could play a meaningful role in supporting cardiovascular health. While the evidence is promising, it is important to be cautious, as clinical studies have shown mixed results regarding its effectiveness.
So, while vitamin C might contribute positively to heart health, more solid evidence is required to fully confirm these effects. Overall, we learned that while there are positive indicators, we should be careful about over-relying on vitamin C as a sole preventive measure for heart disease.
Our analysis revealed that vitamin C could play a meaningful role in supporting cardiovascular health. While the evidence is promising, it is important to be cautious, as clinical studies have shown mixed results regarding its effectiveness.
So, while vitamin C might contribute positively to heart health, more solid evidence is required to fully confirm these effects. Overall, we learned that while there are positive indicators, we should be careful about over-relying on vitamin C as a sole preventive measure for heart disease.
7
Stroke risk reduction
Most Useful Review
Vitamin C may play a role in reducing stroke risk. A 2013 study found that those consuming higher amounts of vitamin C had a lower stroke risk. Although the exact mechanism is unclear, it may relate to blood pressure reduction and inflammation control, ultimately affecting heart disease.
Liver Disease
SCIENTIFIC SCORE
Possibly Effective
Based on 11 Researches
7.9
USERS' SCORE
Good
Based on 1 Review
8.4
9
Vitamin C reduces liver injury
The Effect of Ascorbic Acid on Hepatic Ischaemia-Reperfusion Injury in Wistar Rats: An Experimental Study.
Most Relevant Research
We evaluated how vitamin C, also known as ascorbic acid, can help protect the liver during procedures that temporarily cut off blood flow—a process known as ischaemia followed by reperfusion. In this study, we used thirty-six male Wistar rats, split into control groups and experimental ones. Each group received the same total dose of vitamin C, administered at different times: either before the ischaemia, before the reperfusion, or both.
Our findings showed that the animals given vitamin C before both the ischaemia and reperfusion had improved outcomes. They had lower levels of liver enzymes, indicating less liver damage, and showed reduced inflammation. Additionally, their portal blood flow was better when compared to the other groups. Overall, our results suggest that administering vitamin C at specific times can significantly reduce liver injury associated with ischaemia-reperfusion.
This study highlights the potential of vitamin C as a protective agent in situations where liver damage is a concern during surgeries or treatments involving blood flow disruption.
Our findings showed that the animals given vitamin C before both the ischaemia and reperfusion had improved outcomes. They had lower levels of liver enzymes, indicating less liver damage, and showed reduced inflammation. Additionally, their portal blood flow was better when compared to the other groups. Overall, our results suggest that administering vitamin C at specific times can significantly reduce liver injury associated with ischaemia-reperfusion.
This study highlights the potential of vitamin C as a protective agent in situations where liver damage is a concern during surgeries or treatments involving blood flow disruption.
7.5
Immune system boost
Most Useful Review
I found that Vitamin C at a dosage of 1000 mg can be vital in treating liver disease, particularly as an antiviral aid. This high dose of vitamins C and D significantly strengthened my body's defences and helped me recover swiftly from viral pneumonia. However, I noted that such doses should not be taken regularly, as they caused a mild fever in me and my brother when healthy. This product contains 100 capsules, sufficient for the entire family, making it an excellent immune system support during illness.
Back Pain
SCIENTIFIC SCORE
Questionable
Based on 4 Researches
5.3
USERS' SCORE
Good
Based on 2 Reviews
8.3
4
Vitamin C's limited impact on pain
The Efficacy of Vitamin C on Postoperative Outcomes after Posterior Lumbar Interbody Fusion: A Randomized, Placebo-Controlled Trial.
Most Relevant Research
We conducted a year-long study to investigate the effects of vitamin C on postoperative pain and recovery after a specific type of spine surgery known as posterior lumbar interbody fusion (PLIF). In this randomized, placebo-controlled trial, we worked with 123 patients, dividing them into two groups: one receiving vitamin C and the other a placebo.
Our main focus was to see how vitamin C influenced lower back pain measured by a visual analogue scale. While we found that there was no significant difference in pain levels at the one-year mark between the two groups, there was a silver lining. We observed that vitamin C appeared to enhance functional improvement, especially within the first three months after surgery.
So, while vitamin C didn’t seem to directly reduce pain intensity after surgery, it could play a role in supporting early recovery and everyday function. This finding may encourage further exploration into vitamin C's potential benefits in postoperative care for patients undergoing spine surgeries.
Our main focus was to see how vitamin C influenced lower back pain measured by a visual analogue scale. While we found that there was no significant difference in pain levels at the one-year mark between the two groups, there was a silver lining. We observed that vitamin C appeared to enhance functional improvement, especially within the first three months after surgery.
So, while vitamin C didn’t seem to directly reduce pain intensity after surgery, it could play a role in supporting early recovery and everyday function. This finding may encourage further exploration into vitamin C's potential benefits in postoperative care for patients undergoing spine surgeries.
7.5
Improved skin condition
Most Useful Review
I feel my skin has become beautiful. I used to take 500mg of vitamin C three times a day, but after trialling a new brand, I've noticed my skin is in better condition over two weeks. My back pain is also easing, and I plan to continue taking it as is.
Acne
SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.6
USERS' SCORE
Good
Based on 24 Reviews
8.2
9
Vitamin C shows effectiveness for acne
Sodium L-ascorbyl-2-phosphate 5% lotion for the treatment of acne vulgaris: a randomized, double-blind, controlled trial.
Most Relevant Research
In our recent study, we set out to explore the effectiveness of a 5% sodium L-ascorbyl-2-phosphate lotion, a stable form of vitamin C, for treating acne. We conducted a double-blind, controlled trial with 50 participants over 12 weeks, where half used the vitamin C lotion and the other half received a placebo.
Our findings revealed significant improvements in acne symptoms for those using the vitamin C lotion compared to the placebo group. We measured outcomes through various assessments, including a global evaluation by investigators and self-reported assessments by the subjects, along with lesion counts.
The results showed that the vitamin C lotion was not only effective but also well-tolerated, with side effects similar to those seen with the placebo. This adds a promising tool to the options available for acne treatment, suggesting that vitamin C might play a valuable role in skincare regimens aimed at combating acne.
Overall, our study supports the idea that vitamin C, in the form of sodium L-ascorbyl-2-phosphate, can help reduce acne, making it a noteworthy addition to acne treatment strategies.
Our findings revealed significant improvements in acne symptoms for those using the vitamin C lotion compared to the placebo group. We measured outcomes through various assessments, including a global evaluation by investigators and self-reported assessments by the subjects, along with lesion counts.
The results showed that the vitamin C lotion was not only effective but also well-tolerated, with side effects similar to those seen with the placebo. This adds a promising tool to the options available for acne treatment, suggesting that vitamin C might play a valuable role in skincare regimens aimed at combating acne.
Overall, our study supports the idea that vitamin C, in the form of sodium L-ascorbyl-2-phosphate, can help reduce acne, making it a noteworthy addition to acne treatment strategies.
9.5
Diminished acne scars
Most Useful Review
Surprisingly, this has worked wonders for me! Most of my acne scars have faded significantly. I've previously used medication from a dermatologist, but this is even better! It helps with cold prevention and general wellbeing, so I'll definitely keep using it. The taste is slightly lemony and although the tablet is large, my family cuts it in half.
Heartburn
SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 22 Reviews
8.1
8
Vitamin C reduces heartburn symptoms
The safety and efficacy of 2% vitamin C solution spray for relief of mucosal irritation caused by Lugol chromoendoscopy: a multicenter, randomized, double-blind, parallel trial.
Most Relevant Research
We investigated how vitamin C, specifically in the form of a 2% vitamin C solution spray, could help alleviate heartburn symptoms following Lugol chromoendoscopy, a procedure that involves staining the esophagus to better visualize abnormalities. In a well-structured study with 240 participants, we used a randomized, double-blind approach to compare the effectiveness of vitamin C to normal saline and sodium thiosulfate solutions.
Our results showed that vitamin C spray significantly reduced both acute heartburn symptoms and late discomfort when compared to the saline solution. Specifically, 33% of participants using vitamin C reported relief from acid regurgitation or heartburn, compared to just 15% with sodium thiosulfate. Additionally, patients noted an improvement in retrosternal pain, with 21% finding relief from the vitamin C treatment versus 9% from sodium thiosulfate.
Furthermore, vitamin C offered a quicker discoloration of the iodine-stained mucosa compared to saline, enhancing the overall experience of the procedure. These findings suggest that incorporating vitamin C spray into post-procedural care could be a helpful strategy for patients facing discomfort after undergoing Lugol chromoendoscopy.
Our results showed that vitamin C spray significantly reduced both acute heartburn symptoms and late discomfort when compared to the saline solution. Specifically, 33% of participants using vitamin C reported relief from acid regurgitation or heartburn, compared to just 15% with sodium thiosulfate. Additionally, patients noted an improvement in retrosternal pain, with 21% finding relief from the vitamin C treatment versus 9% from sodium thiosulfate.
Furthermore, vitamin C offered a quicker discoloration of the iodine-stained mucosa compared to saline, enhancing the overall experience of the procedure. These findings suggest that incorporating vitamin C spray into post-procedural care could be a helpful strategy for patients facing discomfort after undergoing Lugol chromoendoscopy.
9.5
No heartburn experienced
Most Useful Review
Super! I used to experience heartburn with vitamin C, particularly with capsule forms. However, I've found this one perfect; it does not induce heartburn. I take it after heavy meals, and my muscles feel less fatigued during training. Additionally, when I sense a cold coming on, I increase my dosage, and it works wonders. The 1000 mg capsules are convenient, and I recommend it highly!
Ulcer
SCIENTIFIC SCORE
Possibly Effective
Based on 5 Researches
7.8
USERS' SCORE
Moderately Good
Based on 12 Reviews
7.7
8
Vitamin C reduces gastric ulcers
Vitamin C modulates adrenaline-augmented gastric injury via cardiac troponin/creatine kinase pathway in Wistar rats.
Most Relevant Research
We observed the potential benefits of vitamin C in managing gastric ulcers under conditions of myocardial injury, which was induced using adrenaline in our study. Thirty Wistar rats were carefully divided into five groups, ensuring a control group for comparison.
The rats that received adrenaline alone showed increased gastric secretions and elevated markers related to heart injury. However, those pre-treated with vitamin C experienced a notable reduction in ulcer severity and excessive gastric secretions.
Interestingly, when we administered vitamin C before the adrenaline exposure, we found that it significantly decreased both the volume of gastric juice and total acidity, while also enhancing some protective factors. In essence, our research indicates that vitamin C may play a protective role in gastric health, particularly amid the stressful conditions created by adrenaline.
The rats that received adrenaline alone showed increased gastric secretions and elevated markers related to heart injury. However, those pre-treated with vitamin C experienced a notable reduction in ulcer severity and excessive gastric secretions.
Interestingly, when we administered vitamin C before the adrenaline exposure, we found that it significantly decreased both the volume of gastric juice and total acidity, while also enhancing some protective factors. In essence, our research indicates that vitamin C may play a protective role in gastric health, particularly amid the stressful conditions created by adrenaline.
9.5
Cold avoidance
Most Useful Review
Taking this time-release vitamin C has helped me avoid mouth ulcers and colds effectively.
Chest Pain
SCIENTIFIC SCORE
Moderately Effective
Based on 13 Researches
8.3
USERS' SCORE
Medium or Average
Based on 7 Reviews
6.4
9
Vitamin C improves coronary response
Effect of ascorbic acid on endothelial dysfunction of epicardial coronary arteries in chronic smokers assessed by cold pressor testing.
Most Relevant Research
We explored the effects of vitamin C on chest pain in chronic smokers experiencing endothelial dysfunction. In our study, 31 patients, who were undergoing diagnostic catheterization without significant coronary artery issues, participated in a controlled trial. They were given either an IV infusion of 3 grams of ascorbic acid (vitamin C) or a placebo saline solution before undergoing a cold pressor test to assess their coronary artery response.
The results were telling. Smokers typically showed a decrease in luminal area—an indicator of blood flow—during the cold pressor test. However, after infusing vitamin C, this response shifted positively, demonstrating improved blood flow through a vasodilation effect. On the other hand, those who received the placebo did not experience significant changes.
This means that for chronic smokers, acute administration of vitamin C appears to enhance the function of the endothelium, which is vital for proper blood vessel health and managing chest pain. Ultimately, we observed that vitamin C may help prevent the inactivation of nitric oxide, a compound that supports healthy blood flow, and this effect could be crucial for managing cardiovascular health in smokers.
The results were telling. Smokers typically showed a decrease in luminal area—an indicator of blood flow—during the cold pressor test. However, after infusing vitamin C, this response shifted positively, demonstrating improved blood flow through a vasodilation effect. On the other hand, those who received the placebo did not experience significant changes.
This means that for chronic smokers, acute administration of vitamin C appears to enhance the function of the endothelium, which is vital for proper blood vessel health and managing chest pain. Ultimately, we observed that vitamin C may help prevent the inactivation of nitric oxide, a compound that supports healthy blood flow, and this effect could be crucial for managing cardiovascular health in smokers.
8.3
Effective treatment
Most Useful Review
Excellent vitamin C; it does not cause stomach pain or any unpleasant side effects. The price reflects the quality, and we enjoy it as a family.
