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.
Read More
8
Vitamin C triterpene flu inhibitors
Design, synthesis and biological evaluation of novel L-ascorbic acid-conjugated pentacyclic triterpene derivatives as potential influenza virus entry inhibitors.
We recently explored the potential of novel compounds that are combinations of L-ascorbic acid, commonly known as vitamin C, and pentacyclic triterpenes in battling the flu. The study focused on compounds we created and tested against the influenza virus in MDCK cells, particularly looking at their effectiveness and any possible side effects.
Among all the compounds we evaluated, one stood out: the 2,3-O,O-dibenzyl-6-deoxy-L-ascorbic acid-betulinic acid conjugate. It displayed significant anti-influenza activity with an effective concentration (EC50) of just 8.7 μM and was not toxic to the cells used in our testing. This suggests that combining vitamin C with these triterpenes might enhance their ability to fight the flu virus, marking an exciting avenue for further research.
We also discovered that this particular compound acts early in the influenza lifecycle, interfering with the virus's ability to attach to cells. We confirmed this by observing that it inhibited the hemagglutination—a crucial step that allows the virus to spread. Our findings indicate that L-ascorbic acid-conjugated triterpenes hold promise as potential anti-influenza agents, specifically targeting viral entry and enhancing the effectiveness of treatment strategies.
Read More
4
Vitamin C shows moderate influenza inhibition
Five Novel Non-Sialic Acid-Like Scaffolds Inhibit In Vitro H1N1 and H5N2 Neuraminidase Activity of Influenza a Virus.
We investigated the effects of various compounds, including vitamin C, on the neuraminidase (NA) activity of influenza viruses, specifically H1N1 and H5N2. Neuraminidase is crucial for the virus as it helps release new viral particles from infected cells, making it a key target for antiviral treatments.
In this study, we focused on five different compounds that are structurally distinct from sialic acid, which is the natural substrate of neuraminidase. Among those tested, vitamin C was one of the compounds alongside others like acetyl phenylalanylmethionine and propanoic acid derivatives. We found that these compounds inhibited NA activity, but the degree of inhibition varied.
Notably, the inhibition we observed was in the millimolar range, which suggests that while there is some effect, the affinity of vitamin C to inhibit neuraminidase is moderate compared to the reference drug zanamivir. The IC values for the compounds ranged from 6.4 to 73 mM, indicating that they are not as potent as zanamivir.
Overall, our study presents vitamin C and other small organic molecules as potential lead compounds for developing new neuraminidase inhibitors, even if vitamin C’s impact on flu remains to be clarified as part of a broader analysis of multiple compounds.
Read More
Most Useful Reviews
9
Boosted immunity
I have used Solgar's Vitamin C, 500 mg, for a few months and am impressed by the results: high quality, easy-to-swallow capsules, and noticeable immune support, preventing major illnesses during flu season. I also feel more energetic and have seen improvements in my skin's appearance.
Read More
9
Supports immune system
Great Vitamin C at 500 mg per 100 veggie capsules has been a fantastic addition to my daily routine. The quality is excellent: the small capsules are easy to swallow and do not cause stomach discomfort, unlike many tablets. I chose Vitamin C to support my immune system, and since starting this product, I've noticed I fall ill less often during cold and flu season. It also improves my skin’s condition, with noticeable changes in its texture and brightness. Each capsule contains 500 mg of vitamin C as ascorbic acid, which is effective for absorption. The packaging is convenient, lasting me over three months with a daily dose. Importantly, it contains no artificial additives or preservatives. Overall, I'm delighted with Vitamin C and intend to keep using it to maintain my health.
Read More
9
Indispensable for flu
Great value for money! I take it with other supplements in the morning. Vitamin C is indispensable for my immune system, making me feel stronger and more resilient against the flu. I highly recommend it.
We set out to discover how red ginseng and vitamin C work together to enhance immune cell function and fight off viral infections like the flu. In our investigation, we treated human immune cells and specific types of mice unable to produce vitamin C, looking closely at their reaction to influenza A virus/H1N1.
Our findings were quite promising. We observed that both red ginseng and vitamin C elevated the activation levels of immune cells, particularly T-cells and natural killer (NK) cells, known for their vital role in combating viruses. This combination not only helped boost immune cell activity but also reduced lung inflammation caused by the influenza virus, which is crucial for better survival rates during infections.
In cases where vitamin C levels were low in a specific mouse model, we noted that the added nutrients significantly improved their condition. They experienced reduced viral load and inflammation in their lungs after receiving red ginseng and vitamin C, compared to those without this supplementation. These insights suggest that while red ginseng and vitamin C collectively support immune health, the interplay of these substances can be crucial in managing flu infections effectively.
Read More
8
Vitamin C triterpene flu inhibitors
Design, synthesis and biological evaluation of novel L-ascorbic acid-conjugated pentacyclic triterpene derivatives as potential influenza virus entry inhibitors.
We recently explored the potential of novel compounds that are combinations of L-ascorbic acid, commonly known as vitamin C, and pentacyclic triterpenes in battling the flu. The study focused on compounds we created and tested against the influenza virus in MDCK cells, particularly looking at their effectiveness and any possible side effects.
Among all the compounds we evaluated, one stood out: the 2,3-O,O-dibenzyl-6-deoxy-L-ascorbic acid-betulinic acid conjugate. It displayed significant anti-influenza activity with an effective concentration (EC50) of just 8.7 μM and was not toxic to the cells used in our testing. This suggests that combining vitamin C with these triterpenes might enhance their ability to fight the flu virus, marking an exciting avenue for further research.
We also discovered that this particular compound acts early in the influenza lifecycle, interfering with the virus's ability to attach to cells. We confirmed this by observing that it inhibited the hemagglutination—a crucial step that allows the virus to spread. Our findings indicate that L-ascorbic acid-conjugated triterpenes hold promise as potential anti-influenza agents, specifically targeting viral entry and enhancing the effectiveness of treatment strategies.
Read More
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.
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.
Read More
7
Vitamin C's promise against flu
Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
We examined how vitamin C supplementation can impact flu incidence and symptom duration. Our analysis of clinical studies indicated that vitamin C does show promise in reducing the risk of acute respiratory infections, including flu. Specifically, vitamin C reduced the likelihood of catching an acute respiratory infection by approximately 4% (risk ratio of 0.96).
Additionally, we observed that vitamin C also helps shorten the duration of flu symptoms by around 9%. This effect seemed to be more pronounced in men and people from middle-income countries, highlighting the complexity of health factors influenced by gender and socio-economic status.
Overall, while the findings suggest vitamin C can be a modicum of hope in managing flu symptoms, it isn't a standalone solution. Our results advocate for more research to fully understand the impact of vitamin C, especially in the context of the ongoing challenges posed by various respiratory viruses, including influenza.
Read More
4
Vitamin C shows moderate influenza inhibition
Five Novel Non-Sialic Acid-Like Scaffolds Inhibit In Vitro H1N1 and H5N2 Neuraminidase Activity of Influenza a Virus.
We investigated the effects of various compounds, including vitamin C, on the neuraminidase (NA) activity of influenza viruses, specifically H1N1 and H5N2. Neuraminidase is crucial for the virus as it helps release new viral particles from infected cells, making it a key target for antiviral treatments.
In this study, we focused on five different compounds that are structurally distinct from sialic acid, which is the natural substrate of neuraminidase. Among those tested, vitamin C was one of the compounds alongside others like acetyl phenylalanylmethionine and propanoic acid derivatives. We found that these compounds inhibited NA activity, but the degree of inhibition varied.
Notably, the inhibition we observed was in the millimolar range, which suggests that while there is some effect, the affinity of vitamin C to inhibit neuraminidase is moderate compared to the reference drug zanamivir. The IC values for the compounds ranged from 6.4 to 73 mM, indicating that they are not as potent as zanamivir.
Overall, our study presents vitamin C and other small organic molecules as potential lead compounds for developing new neuraminidase inhibitors, even if vitamin C’s impact on flu remains to be clarified as part of a broader analysis of multiple compounds.
Read More
User Reviews
USERS' SCORE
Good
Based on 25 Reviews
8
All Reviews
Positive Reviews
Negative Reviews
9
Boosted immunity
I have used Solgar's Vitamin C, 500 mg, for a few months and am impressed by the results: high quality, easy-to-swallow capsules, and noticeable immune support, preventing major illnesses during flu season. I also feel more energetic and have seen improvements in my skin's appearance.
Read More
9
Supports immune system
Great Vitamin C at 500 mg per 100 veggie capsules has been a fantastic addition to my daily routine. The quality is excellent: the small capsules are easy to swallow and do not cause stomach discomfort, unlike many tablets. I chose Vitamin C to support my immune system, and since starting this product, I've noticed I fall ill less often during cold and flu season. It also improves my skin’s condition, with noticeable changes in its texture and brightness. Each capsule contains 500 mg of vitamin C as ascorbic acid, which is effective for absorption. The packaging is convenient, lasting me over three months with a daily dose. Importantly, it contains no artificial additives or preservatives. Overall, I'm delighted with Vitamin C and intend to keep using it to maintain my health.
Read More
9
Indispensable for flu
Great value for money! I take it with other supplements in the morning. Vitamin C is indispensable for my immune system, making me feel stronger and more resilient against the flu. I highly recommend it.
Read More
7.5
Stronger immunity
The quality is superb. Vitamin C strengthens my immune system, protecting it from viruses and bacteria. It accelerates wound healing and influences hormone synthesis while normalising capillary permeability. Since I began taking this vitamin, I’ve tolerated ARVI and flu much more easily. The size is convenient too.
Read More
7.5
Less severe flus
Perfect! After I started using it, I felt stronger and the flus were less severe.
The flu, short for influenza, is a contagious respiratory illness caused by influenza viruses. It affects the nose, throat, and sometimes the lungs, leading to a range of symptoms that can vary in severity. Common symptoms include fever, chills, muscle aches, cough, congestion, runny nose, headaches, and fatigue. The flu can lead to serious complications, particularly in vulnerable populations such as young children, the elderly, pregnant women, and those with underlying health conditions.
The flu virus spreads primarily through respiratory droplets when an infected person coughs, sneezes, or talks. It can also be transmitted by touching surfaces contaminated with the virus and then touching one's face. Vaccination is the most effective way to prevent the flu, and the vaccine is typically updated annually to provide protection against the most common circulating strains. In addition to vaccination, practicing good hygiene, such as frequent handwashing and respiratory etiquette, can help minimize the risk of infection.
Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a critical role in numerous bodily functions. As an essential nutrient, it contributes to the growth and repair of tissues in the body, and it is vital for the production of collagen, an important protein that helps maintain skin, cartilage, tendons, ligaments, and blood vessels. Additionally, Vitamin C acts as a powerful antioxidant, which means it helps combat free radicals—unstable molecules that can cause oxidative stress and contribute to various chronic diseases.
Moreover, Vitamin C enhances iron absorption from plant-based foods, making it a vital component for those following vegetarian or vegan diets. While many people get sufficient Vitamin C from a well-balanced diet that includes fruits and vegetables like oranges, strawberries, kiwi, broccoli, and bell peppers, some individuals might require supplementation. It's generally recommended to stay within the daily intake guidelines, as excessive consumption can lead to gastrointestinal disturbances. Overall, Vitamin C is not just a skincare celebrity—it's a fundamental part of maintaining overall health and well-being.
Vitamin C is often touted as a remedy for the common cold and flu, but the scientific evidence supporting its effectiveness is mixed. Some studies suggest that taking Vitamin C may reduce the duration and severity of flu-like symptoms, particularly in people who are under physical stress, such as athletes. However, for the average person, the benefits of high-dose Vitamin C in preventing or treating the flu are not conclusively supported by research. It's generally recommended to maintain an adequate intake of Vitamin C as part of a balanced diet, but relying solely on supplements is not a guaranteed method for preventing the flu.
Incorporating Vitamin C-rich foods, such as citrus fruits, strawberries, and bell peppers, can support your immune system and overall health. It's important to note that while Vitamin C can contribute to your well-being, it should not replace conventional flu prevention measures, like vaccination and good hygiene practices. If you're already experiencing flu symptoms, it's advisable to consult with a healthcare professional for appropriate treatment options.
Based on user reviews, it seems that many individuals begin to notice the effects of Vitamin C relatively quickly, often within a few days to a few weeks of regular use. For example, one user mentioned feeling stronger and experiencing less severe flu symptoms shortly after starting the supplement Read Review. Additionally, others reported fewer colds and improved overall health after continuous usage over a period of 2-3 months Read Review.
Furthermore, reviews indicate that Vitamin C not only helps strengthen the immune system but may also enhance resilience against illnesses like the flu during common seasonal outbreaks Read Review. Users recommend starting the supplement at the first sign of illness for quicker results, suggesting that prompt usage may provide additional benefits in flu prevention Read Review. Overall, it appears that incorporating this vitamin into your routine can lead to noticeable improvements in health and immunity in a relatively short period.
Vitamin C supplementation is gaining attention in the field of flu management, with several studies indicating its potential benefits. Research shows that vitamin C can reduce the incidence of acute respiratory infections, including the flu, by approximately 4% and can shorten the duration of flu symptoms by around 9% [1]. Additionally, in an examination of the immune response, vitamin C was found to work synergistically with red ginseng to enhance immune cell activity and reduce lung inflammation in cases of influenza infection [3]. These findings suggest that while vitamin C may not be a standalone solution for flu prevention, it can potentially play a supportive role in managing the illness.
Moreover, further studies have explored vitamin C's mechanism against the influenza virus itself. Some novel compounds combining vitamin C with other molecules showed significant anti-influenza activity, indicating that it may enhance the effectiveness of treatment strategies targeting viral entry points [4]. Vitamin C also demonstrated protective effects in stress-induced pneumonia, suggesting it helps support the immune system during periods of heightened vulnerability [5]. Overall, while more comprehensive research is necessary, the current findings advocate for vitamin C as a promising supplement for supporting flu health and improving recovery outcomes.
Users report significant improvements in both immune function and overall health after incorporating Vitamin C into their routines. Many individuals noted a marked decrease in the frequency and severity of colds and flu symptoms, with one review stating that the user experienced "fewer colds and stopped catching the flu from others" after consistent use Read Review. Another user echoed this sentiment, mentioning they fall ill less often during cold and flu season Read Review. Reports of enhanced energy levels and skin health improvements have also surfaced, with some individuals noticing better skin texture and brightness as a side effect of regular Vitamin C consumption Read Review.
Moreover, users have shared their approach of increasing dosage at the first sign of illness, indicating that this strategy may yield quicker symptom relief Read Review. While experiences vary, many users unanimously support the idea that Vitamin C plays a crucial role in reinforcing the immune system and enhancing overall health, offering reassurance to those seeking prevention during peak flu seasons Read Review. Overall, it seems that regular intake of Vitamin C can lead to noticeable benefits, both in immune resilience and general wellness.
Users report that combining Vitamin C with other supplements has proven to be a strategic approach for enhancing immunity, particularly during flu season. Many users noted they take Vitamin C alongside Vitamin D, which they believe amplifies its immune-boosting effects. For example, one review mentions combining Solgar Vitamin C with Vitamin D, stating that "this combination works well for me" in terms of reducing the frequency of colds and the flu Read Review. Additionally, there are reports of users increasing their Vitamin C dosage alongside other supplements upon the onset of symptoms to provide added protection Read Review.
Furthermore, several reviews indicate that doubling up on Vitamin C when feeling unwell enhances its effectiveness in combating flu symptoms. Users have expressed that they often resort to this strategy for faster symptom relief Read Review. The consensus among users is that combining Vitamin C with other vitamins, especially during the colder months or when feeling under the weather, contributes positively toward maintaining overall health and immunity, thus reducing the likelihood of falling ill Read Review.
According to recent research, there isn't a universally recommended optimal dose of Vitamin C specifically for treating the flu, as various studies present different doses and outcomes. For instance, one study indicated that administering oral vitamin C in doses of 125 to 250 mg/kg significantly reduced severe symptoms of pneumonia caused by H1N1 in stressed mice [5]. While these findings suggest that higher doses could be beneficial in certain contexts, it’s important to remember that results may vary based on individual health conditions and responses.
Moreover, another analysis hinted that while Vitamin C offers promise in reducing the risk and duration of acute respiratory infections, including the flu, its effect is modest, with a reduction in flu symptoms by around 9% [1]. This indicates that, while Vitamin C can play a role in managing flu symptoms, particularly when coupled with other supportive treatments, it shouldn't be relied upon as a standalone remedy. In summary, while higher doses seem effective in specific studies, it's essential for individuals to consult healthcare professionals for personalized advice on Vitamin C supplementation during flu season.
7.5
Less severe flus
Perfect! After I started using it, I felt stronger and the flus were less severe.
7.5
Improved flu resistance
1 people found this helpful
I consume various vitamins to support my immunity and health every autumn-winter. One vital vitamin is C from Solgar, available in dark glass jars with 100 capsules. I take one capsule after meals, which I've done for 2-3 months. I've noticed I suffer fewer colds and no longer catch the flu. Other vitamins meant for beauty are absorbed better due to it, and my overall health has improved.
9
Indispensable for flu
Great value for money! I take it with other supplements in the morning. Vitamin C is indispensable for my immune system, making me feel stronger and more resilient against the flu. I highly recommend it.
7.5
Daily flu protection
I regularly take Vitamin C from a well-known manufacturer during influenza epidemics and viral infections. I tend to take a higher dosage at the first sign of a cold, and it has significantly reduced the frequency of my illnesses. I recommend this product for anyone seeking reliable flu protection.
9
Supports immune system
Great Vitamin C at 500 mg per 100 veggie capsules has been a fantastic addition to my daily routine. The quality is excellent: the small capsules are easy to swallow and do not cause stomach discomfort, unlike many tablets. I chose Vitamin C to support my immune system, and since starting this product, I've noticed I fall ill less often during cold and flu season. It also improves my skin’s condition, with noticeable changes in its texture and brightness. Each capsule contains 500 mg of vitamin C as ascorbic acid, which is effective for absorption. The packaging is convenient, lasting me over three months with a daily dose. Importantly, it contains no artificial additives or preservatives. Overall, I'm delighted with Vitamin C and intend to keep using it to maintain my health.
7.5
Immunity boost
I regularly take Vitamin C in autumn and during viral disease outbreaks. It effectively boosts immunity and helps prevent me from getting the flu.
7.5
Reduced flu frequency
I have been using Solgar's Vitamin C for a couple of years to boost my immune system, and it is quite effective. I used to catch several colds or the flu each winter, but now it's much less frequent. Since the pandemic, I've combined it with Vitamin D, and this combination works well for me.
9
Effective for flu
1 people found this helpful
My family takes vitamin C for prevention during colds and increases the dosage during illness. I appreciate Solgar for its superior absorption and good dosage. When I start to feel ill, I immediately take vitamin C, D3, and plenty of fluids. Solgar provides quality vitamins at reasonable prices and is well-packaged in glass jars.
7
Vitamin C's promise against flu
Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
We examined how vitamin C supplementation can impact flu incidence and symptom duration. Our analysis of clinical studies indicated that vitamin C does show promise in reducing the risk of acute respiratory infections, including flu. Specifically, vitamin C reduced the likelihood of catching an acute respiratory infection by approximately 4% (risk ratio of 0.96).
Additionally, we observed that vitamin C also helps shorten the duration of flu symptoms by around 9%. This effect seemed to be more pronounced in men and people from middle-income countries, highlighting the complexity of health factors influenced by gender and socio-economic status.
Overall, while the findings suggest vitamin C can be a modicum of hope in managing flu symptoms, it isn't a standalone solution. Our results advocate for more research to fully understand the impact of vitamin C, especially in the context of the ongoing challenges posed by various respiratory viruses, including influenza.
9
Immune booster for flu treatment
Red ginseng and vitamin C increase immune cell activity and decrease lung inflammation induced by influenza A virus/H1N1 infection.
We set out to discover how red ginseng and vitamin C work together to enhance immune cell function and fight off viral infections like the flu. In our investigation, we treated human immune cells and specific types of mice unable to produce vitamin C, looking closely at their reaction to influenza A virus/H1N1.
Our findings were quite promising. We observed that both red ginseng and vitamin C elevated the activation levels of immune cells, particularly T-cells and natural killer (NK) cells, known for their vital role in combating viruses. This combination not only helped boost immune cell activity but also reduced lung inflammation caused by the influenza virus, which is crucial for better survival rates during infections.
In cases where vitamin C levels were low in a specific mouse model, we noted that the added nutrients significantly improved their condition. They experienced reduced viral load and inflammation in their lungs after receiving red ginseng and vitamin C, compared to those without this supplementation. These insights suggest that while red ginseng and vitamin C collectively support immune health, the interplay of these substances can be crucial in managing flu infections effectively.
8
Vitamin C triterpene flu inhibitors
Design, synthesis and biological evaluation of novel L-ascorbic acid-conjugated pentacyclic triterpene derivatives as potential influenza virus entry inhibitors.
We recently explored the potential of novel compounds that are combinations of L-ascorbic acid, commonly known as vitamin C, and pentacyclic triterpenes in battling the flu. The study focused on compounds we created and tested against the influenza virus in MDCK cells, particularly looking at their effectiveness and any possible side effects.
Among all the compounds we evaluated, one stood out: the 2,3-O,O-dibenzyl-6-deoxy-L-ascorbic acid-betulinic acid conjugate. It displayed significant anti-influenza activity with an effective concentration (EC50) of just 8.7 μM and was not toxic to the cells used in our testing. This suggests that combining vitamin C with these triterpenes might enhance their ability to fight the flu virus, marking an exciting avenue for further research.
We also discovered that this particular compound acts early in the influenza lifecycle, interfering with the virus's ability to attach to cells. We confirmed this by observing that it inhibited the hemagglutination—a crucial step that allows the virus to spread. Our findings indicate that L-ascorbic acid-conjugated triterpenes hold promise as potential anti-influenza agents, specifically targeting viral entry and enhancing the effectiveness of treatment strategies.
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.
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.
References
Abioye AI, Bromage S, Fawzi W. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis. BMJ Glob Health. 2021;6. 10.1136/bmjgh-2020-003176
Márquez-Domínguez L, Reyes-Leyva J, Herrera-Camacho I, Santos-López G, Scior T. Five Novel Non-Sialic Acid-Like Scaffolds Inhibit In Vitro H1N1 and H5N2 Neuraminidase Activity of Influenza a Virus. Molecules. 2020;25. 10.3390/molecules25184248
Kim H, Jang M, Kim Y, Choi J, Jeon J, et al. Red ginseng and vitamin C increase immune cell activity and decrease lung inflammation induced by influenza A virus/H1N1 infection. J Pharm Pharmacol. 2016;68:406. 10.1111/jphp.12529
Wang H, Xu R, Shi Y, Si L, Jiao P, et al. Design, synthesis and biological evaluation of novel L-ascorbic acid-conjugated pentacyclic triterpene derivatives as potential influenza virus entry inhibitors. Eur J Med Chem. 2016;110:376. 10.1016/j.ejmech.2016.01.005
Cai Y, Li YF, Tang LP, Tsoi B, Chen M, et al. A new mechanism of vitamin C effects on A/FM/1/47(H1N1) virus-induced pneumonia in restraint-stressed mice. Biomed Res Int. 2015;2015:675149. 10.1155/2015/675149