Reviewed By
Overview
SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.9
USERS' SCORE
Good
Based on 12 Reviews
8.3
Supplement Facts
Serving Size: 1 Softgel
Amount Per Serving
%DV
Vitamin D3 (as Cholecalciferol) (From Lanolin)
1,250 mcg (50,000 IU)
6250%
Top Medical Research Studies
8
We explored the connection between vitamin D levels and the frequency of upper respiratory tract infections (URTI) in physically active individuals throughout different seasons. In our research, we observed over 1,600 military recruits during their basic training, noting that only 21% were vitamin D sufficient during winter. Alarmingly, those who had sufficient vitamin D levels were found to be 40% less likely to experience URTIs compared to their deficient counterparts, suggesting that maintaining adequate vitamin D may be crucial for better respiratory health during demanding training periods.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Read More
8
We explored whether taking 25-hydroxyvitamin D3, a form of vitamin D, could have a positive impact on upper respiratory tract infections (URTIs), commonly known as colds. To do this, we conducted a randomized, double-blind, placebo-controlled study at clinics in Japan, involving 428 participants aged between 45 and 74 years.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
Read More
We examined the role of vitamin D in managing common colds, delving into how it interacts with our immune system to potentially lessen the severity and duration of symptoms. The study highlighted that individuals with vitamin D deficiency, as well as those not receiving large doses, are more likely to benefit from vitamin D supplementation during cold episodes.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
Read More
Most Useful Reviews
9
Effective dosage
5 people found this helpful
A brilliant vitamin D dosage that really works! I take a capsule every ten days during winter and have consistently maintained my vitamin levels, which helps prevent the common cold.
Read More
7.5
Immunity improvement
12 people found this helpful
This supplement is incredibly effective for treating the common cold. Since taking it, I've avoided illness for three years and lost 26kg without strict dieting. While it contains a high dose of vitamin D, caution is advised for those taking larger amounts for dieting, as it may affect calcium levels and bones.
Read More
9
Cold prevention
2 people found this helpful
When I sense a common cold coming on, I take one tablet, which has successfully kept me awake and healthy this winter. I typically use 5000IU of vitamin D3, but this tablet has been particularly effective.
Read More
Medical Researches
SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.9
- All Researches
8
We explored the connection between vitamin D levels and the frequency of upper respiratory tract infections (URTI) in physically active individuals throughout different seasons. In our research, we observed over 1,600 military recruits during their basic training, noting that only 21% were vitamin D sufficient during winter. Alarmingly, those who had sufficient vitamin D levels were found to be 40% less likely to experience URTIs compared to their deficient counterparts, suggesting that maintaining adequate vitamin D may be crucial for better respiratory health during demanding training periods.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Read More
We examined the role of vitamin D in managing common colds, delving into how it interacts with our immune system to potentially lessen the severity and duration of symptoms. The study highlighted that individuals with vitamin D deficiency, as well as those not receiving large doses, are more likely to benefit from vitamin D supplementation during cold episodes.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
Read More
8
We explored whether taking 25-hydroxyvitamin D3, a form of vitamin D, could have a positive impact on upper respiratory tract infections (URTIs), commonly known as colds. To do this, we conducted a randomized, double-blind, placebo-controlled study at clinics in Japan, involving 428 participants aged between 45 and 74 years.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
Read More
8
Vitamin D aids immune response
We observed the important role that vitamin D plays in maintaining a healthy immune system, particularly regarding the common cold. Research indicates that vitamin D may help limit the incidence and duration of infections, which can be especially beneficial for athletes.
Notably, many individuals, including athletes, often exhibit low vitamin D levels, especially during winter months. This deficiency may increase the risk of catching common illnesses like colds and flu.
While studies suggest that vitamin D can have a positive effect on immune function, the evidence around its effectiveness specifically for the common cold isn't overwhelming. We found that a well-balanced approach to nutrition, rather than relying solely on supplements, is essential for optimal immune health in athletes.
Notably, many individuals, including athletes, often exhibit low vitamin D levels, especially during winter months. This deficiency may increase the risk of catching common illnesses like colds and flu.
While studies suggest that vitamin D can have a positive effect on immune function, the evidence around its effectiveness specifically for the common cold isn't overwhelming. We found that a well-balanced approach to nutrition, rather than relying solely on supplements, is essential for optimal immune health in athletes.
Read More
8
We explored how a combination of vitamins and minerals, including vitamin D, could potentially influence the frequency and severity of common colds among individuals who frequently suffer from upper respiratory infections. In a well-structured study involving 192 participants, we conducted a randomized, placebo-controlled, double-blind trial that lasted for 16 weeks.
Throughout the trial, we monitored a range of factors, including the number and intensity of cold symptoms. Notably, those who received the micronutrient combination, which encompassed vitamins like C and D as well as other essential nutrients, reported significant improvements compared to participants who received a placebo.
Our findings revealed that patients who were initially experiencing a severe common cold saw a notable decrease in their symptoms. Additionally, individuals under 45 years who took the micronutrient blend were less likely to miss work during cold episodes. Importantly, those with initially low levels of vitamin D and C reported fewer colds while taking the supplements.
While vitamin D played a role alongside other micronutrients in improving cold symptoms and reducing infection frequencies, we must recognize that it was part of a broader combination. Thus, while we observed promising results, the specific contribution of vitamin D alone remains challenging to delineate.
Throughout the trial, we monitored a range of factors, including the number and intensity of cold symptoms. Notably, those who received the micronutrient combination, which encompassed vitamins like C and D as well as other essential nutrients, reported significant improvements compared to participants who received a placebo.
Our findings revealed that patients who were initially experiencing a severe common cold saw a notable decrease in their symptoms. Additionally, individuals under 45 years who took the micronutrient blend were less likely to miss work during cold episodes. Importantly, those with initially low levels of vitamin D and C reported fewer colds while taking the supplements.
While vitamin D played a role alongside other micronutrients in improving cold symptoms and reducing infection frequencies, we must recognize that it was part of a broader combination. Thus, while we observed promising results, the specific contribution of vitamin D alone remains challenging to delineate.
Read More
User Reviews
USERS' SCORE
Good
Based on 12 Reviews
8.3
- All Reviews
- Positive Reviews
- Negative Reviews
9
Effective dosage
5 people found this helpful
A brilliant vitamin D dosage that really works! I take a capsule every ten days during winter and have consistently maintained my vitamin levels, which helps prevent the common cold.
Read More
7.5
Immunity improvement
12 people found this helpful
This supplement is incredibly effective for treating the common cold. Since taking it, I've avoided illness for three years and lost 26kg without strict dieting. While it contains a high dose of vitamin D, caution is advised for those taking larger amounts for dieting, as it may affect calcium levels and bones.
Read More
9
Cold prevention
2 people found this helpful
When I sense a common cold coming on, I take one tablet, which has successfully kept me awake and healthy this winter. I typically use 5000IU of vitamin D3, but this tablet has been particularly effective.
Read More
9
Cold symptom relief
1 people found this helpful
I bought this to help my family fight off the common cold. Since starting it, I've successfully kept colds at bay, and I'm very pleased with the results.
Read More
9
Natural composition
Combining vitamin D3 with K2 has greatly improved my immunity; while friends catch the common cold often, I remain well, especially during winter months.
Read More
Frequently Asked Questions
9
Cold prevention
2 people found this helpful
When I sense a common cold coming on, I take one tablet, which has successfully kept me awake and healthy this winter. I typically use 5000IU of vitamin D3, but this tablet has been particularly effective.
9
Natural composition
Combining vitamin D3 with K2 has greatly improved my immunity; while friends catch the common cold often, I remain well, especially during winter months.
9
Cold symptom relief
1 people found this helpful
I bought this to help my family fight off the common cold. Since starting it, I've successfully kept colds at bay, and I'm very pleased with the results.
7.5
Immunity improvement
12 people found this helpful
This supplement is incredibly effective for treating the common cold. Since taking it, I've avoided illness for three years and lost 26kg without strict dieting. While it contains a high dose of vitamin D, caution is advised for those taking larger amounts for dieting, as it may affect calcium levels and bones.
7.5
Enhanced immunity
The quality is excellent, and I've noticed significant improvements in my immunity against the common cold. My family has also benefited, particularly during illness outbreaks.
7.5
Preventative measure
1 people found this helpful
I use this high-dose D3 with K2 to prevent the common cold when someone nearby is ill. I've not caught a cold this winter. An important note: I space doses to avoid side effects.
7.5
Cold protection
1 people found this helpful
These mega doses of D3 are excellent value. I’ve taken them weekly with K2 and noticed fewer occurrences of common colds and other ailments.
7.5
Cold discouragement
1 people found this helpful
Taking 50,000 IU D3 biweekly effectively keeps my levels around 120 nmol/L, discouraging the common cold. It's much more convenient than daily doses and lasts significantly longer.
8
We explored the connection between vitamin D levels and the frequency of upper respiratory tract infections (URTI) in physically active individuals throughout different seasons. In our research, we observed over 1,600 military recruits during their basic training, noting that only 21% were vitamin D sufficient during winter. Alarmingly, those who had sufficient vitamin D levels were found to be 40% less likely to experience URTIs compared to their deficient counterparts, suggesting that maintaining adequate vitamin D may be crucial for better respiratory health during demanding training periods.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
Building on these findings, we conducted a follow-up study with 250 recruits, where we implemented various vitamin D supplementation strategies. Participants received either a placebo, simulated sunlight exposure, or oral vitamin D3 supplementation. The results were promising: vitamin D helped alleviate the severity of URTI symptoms and significantly reduced the number of days experiencing a cold. Notably, both sunlight and dietary supplementation were equally effective in boosting vitamin D levels and improving outcomes.
Overall, achieving vitamin D sufficiency can markedly reduce the burden of URTIs, particularly in physically demanding scenarios such as military training.
8
We explored whether taking 25-hydroxyvitamin D3, a form of vitamin D, could have a positive impact on upper respiratory tract infections (URTIs), commonly known as colds. To do this, we conducted a randomized, double-blind, placebo-controlled study at clinics in Japan, involving 428 participants aged between 45 and 74 years.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
Participants were divided into two groups: one received a daily dose of 10 micrograms of vitamin D3, while the other group received a placebo for 16 weeks. We monitored the frequency of URTIs, their severity, the participants’ quality of life, and the duration of the infections.
Our findings revealed that those who took vitamin D3 experienced shorter durations of URTIs, less severe symptoms, and better quality of life during their illness compared to those on the placebo. This suggests that vitamin D3 may help mitigate the discomfort associated with colds and potentially make us feel better more quickly when we are sick.
7
Vitamin D alleviates cold symptoms
We explored the potential benefits of 25-hydroxyvitamin D (25OHD) in alleviating symptoms of the common cold, specifically during upper respiratory tract infections (URTIs). In our analysis, we utilized data from a randomized, double-blind, placebo-controlled study where participants received either 10 μg of 25OHD or a placebo for 16 weeks.
Our findings revealed that participants in the vitamin D group reported significantly fewer physical symptoms such as runny nose, sneezing, and head congestion compared to those who received the placebo. Additionally, we observed improvements in quality of life scores, particularly regarding various symptoms.
However, it’s essential to note that there were no significant differences in the overall number of URTI episodes or the use of medications like antibiotics and analgesics between the two groups.
Overall, this study suggests that adequate intake of vitamin D can help ease physical discomfort associated with the onset of common colds, especially nasal symptoms, potentially enhancing our quality of life during such infections.
Our findings revealed that participants in the vitamin D group reported significantly fewer physical symptoms such as runny nose, sneezing, and head congestion compared to those who received the placebo. Additionally, we observed improvements in quality of life scores, particularly regarding various symptoms.
However, it’s essential to note that there were no significant differences in the overall number of URTI episodes or the use of medications like antibiotics and analgesics between the two groups.
Overall, this study suggests that adequate intake of vitamin D can help ease physical discomfort associated with the onset of common colds, especially nasal symptoms, potentially enhancing our quality of life during such infections.
8
We explored how a combination of vitamins and minerals, including vitamin D, could potentially influence the frequency and severity of common colds among individuals who frequently suffer from upper respiratory infections. In a well-structured study involving 192 participants, we conducted a randomized, placebo-controlled, double-blind trial that lasted for 16 weeks.
Throughout the trial, we monitored a range of factors, including the number and intensity of cold symptoms. Notably, those who received the micronutrient combination, which encompassed vitamins like C and D as well as other essential nutrients, reported significant improvements compared to participants who received a placebo.
Our findings revealed that patients who were initially experiencing a severe common cold saw a notable decrease in their symptoms. Additionally, individuals under 45 years who took the micronutrient blend were less likely to miss work during cold episodes. Importantly, those with initially low levels of vitamin D and C reported fewer colds while taking the supplements.
While vitamin D played a role alongside other micronutrients in improving cold symptoms and reducing infection frequencies, we must recognize that it was part of a broader combination. Thus, while we observed promising results, the specific contribution of vitamin D alone remains challenging to delineate.
Throughout the trial, we monitored a range of factors, including the number and intensity of cold symptoms. Notably, those who received the micronutrient combination, which encompassed vitamins like C and D as well as other essential nutrients, reported significant improvements compared to participants who received a placebo.
Our findings revealed that patients who were initially experiencing a severe common cold saw a notable decrease in their symptoms. Additionally, individuals under 45 years who took the micronutrient blend were less likely to miss work during cold episodes. Importantly, those with initially low levels of vitamin D and C reported fewer colds while taking the supplements.
While vitamin D played a role alongside other micronutrients in improving cold symptoms and reducing infection frequencies, we must recognize that it was part of a broader combination. Thus, while we observed promising results, the specific contribution of vitamin D alone remains challenging to delineate.
We examined the role of vitamin D in managing common colds, delving into how it interacts with our immune system to potentially lessen the severity and duration of symptoms. The study highlighted that individuals with vitamin D deficiency, as well as those not receiving large doses, are more likely to benefit from vitamin D supplementation during cold episodes.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
Findings suggest that vitamin D might act as a protective agent against common colds overall. Taking vitamin D regularly could help fortify our immune response, which plays a crucial part in fighting off the viruses responsible for colds. The research points towards the idea that maintaining adequate vitamin D levels may offer significant advantages for keeping our immune system vigilant.
However, it’s essential to approach this information with a measure of caution, as further research is necessary to draw definitive conclusions. Overall, encouraging patients to consider vitamin D as a part of their cold prevention strategy seems promising.
References
- Harrison SE, Oliver SJ, Kashi DS, Carswell AT, Edwards JP, et al. Influence of Vitamin D Supplementation by Simulated Sunlight or Oral D3 on Respiratory Infection during Military Training. Med Sci Sports Exerc. 2021;53:1505. 10.1249/MSS.0000000000002604
- Shimizu Y, Ito Y, Uotsu N, Yui K. Intake of 25-Hydroxyvitamin D May Reduce the Severity of Upper Respiratory Tract Infection: Post hoc Analysis of a Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study. Nutrients. 2020;12. 10.3390/nu12123769
- Rondanelli M, Miccono A, Lamburghini S, Avanzato I, Riva A, et al. Self-Care for Common Colds: The Pivotal Role of Vitamin D, Vitamin C, Zinc, and in Three Main Immune Interactive Clusters (Physical Barriers, Innate and Adaptive Immunity) Involved during an Episode of Common Colds-Practical Advice on Dosages and on the Time to Take These Nutrients/Botanicals in order to Prevent or Treat Common Colds. Evid Based Complement Alternat Med. 2018;2018:5813095. 10.1155/2018/5813095
- Shimizu Y, Ito Y, Yui K, Egawa K, Orimo H. Intake of 25-Hydroxyvitamin D3 Reduces Duration and Severity of Upper Respiratory Tract Infection: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparison Study. J Nutr Health Aging. 2018;22:491. 10.1007/s12603-017-0952-x
- Gleeson M. Immunological aspects of sport nutrition. Immunol Cell Biol. 2016;94:117. 10.1038/icb.2015.109
- Schmidt K, Zirkler S. [Dietary efficacy of a micronutrient combination in patients with recurrent upper respiratory tract infections. Results of a placebo-controlled double-blind study]. MMW Fortschr Med. 2011;153 Suppl 3:83.
- Schmidt K, Zirkler S. [Dietary efficacy of a micronutrient combination in patients with recurrent upper respiratory tract infections. Results of a placebo-controlled doubleblind study.]. MMW Fortschr Med. 2011;153:83. 10.1007/s15006-011-1630-2
