Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
USERS' SCORE
Good
Based on 183 Reviews
8.1
Supplement Facts
Serving Size: 1 Vegetable Capsule
Amount Per Serving
%DV
Vitamin C
500 mg
556%
Top Medical Research Studies
7
Effectiveness of Vitamin C on Colds
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.
Read More
9
We explored the effects of ascorbic acid, commonly known as vitamin C, on cold tolerance in tomato seedlings. In our study, we discovered that applying vitamin C significantly boosts the seedlings' ability to handle cold stress.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
Read More
Most Useful Reviews
10
Symptoms disappear
3 people found this helpful
Guard of your health! The first thing I noticed is that at the slightest manifestation of a cold - using 2 tablets a day - all symptoms disappear as if by a magic wand! I love Solgar vitamins; they are quite decent. I consider 500 mg a small dose during a pandemic, so I take 2 tablets daily. I have not noticed any side effects, so I can safely recommend it for use!
Read More
10
Immunity increased
3 people found this helpful
Vitamin C should be in every home. My life has changed since I began taking vitamin C daily. I used to suffer from frequent colds and fatigue. Since I started regular intake, my immunity has improved, and I hardly catch colds now—just a few times, and lightly.
Read More
9
Effective against cold
2 people found this helpful
Vitamin C helps me tackle two issues. I began taking it as a supplement for better absorption. When I felt a cold coming, I took two capsules, and the next day, symptoms vanished as if by magic. I never believed it would work until I tried it myself. It also cleared up my minor acne issues. I plan to continue using the vitamins to bolster my immune system.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
- All Researches
9
We explored the effects of ascorbic acid, commonly known as vitamin C, on cold tolerance in tomato seedlings. In our study, we discovered that applying vitamin C significantly boosts the seedlings' ability to handle cold stress.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
By enhancing the antioxidant defense system, vitamin C treatment increased the enzyme activity in the seedlings' leaves. Additionally, it raised levels of important compounds such as proline, sugar, and abscisic acid, all of which play crucial roles in plant stress responses.
Our observations showed that vitamin C also protects the photosynthesis system of tomato seedlings. This implies that it helps maintain chlorophyll function, which is critical for the plant's overall health, especially under cold conditions.
Moreover, we found that vitamin C treatments led to increased expression of genes linked to antioxidant enzymes and cold response mechanisms. Overall, our findings suggest that exogenous vitamin C is a beneficial approach to improve cold tolerance in tomatoes and may provide helpful insights for farmers looking to cultivate hardier varieties during colder months.
Read More
7
Effectiveness of Vitamin C on Colds
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.
Read More
User Reviews
USERS' SCORE
Good
Based on 183 Reviews
8.1
- All Reviews
- Positive Reviews
- Negative Reviews
10
Symptoms disappear
3 people found this helpful
Guard of your health! The first thing I noticed is that at the slightest manifestation of a cold - using 2 tablets a day - all symptoms disappear as if by a magic wand! I love Solgar vitamins; they are quite decent. I consider 500 mg a small dose during a pandemic, so I take 2 tablets daily. I have not noticed any side effects, so I can safely recommend it for use!
Read More
10
Immunity increased
3 people found this helpful
Vitamin C should be in every home. My life has changed since I began taking vitamin C daily. I used to suffer from frequent colds and fatigue. Since I started regular intake, my immunity has improved, and I hardly catch colds now—just a few times, and lightly.
Read More
9
Effective against cold
2 people found this helpful
Vitamin C helps me tackle two issues. I began taking it as a supplement for better absorption. When I felt a cold coming, I took two capsules, and the next day, symptoms vanished as if by magic. I never believed it would work until I tried it myself. It also cleared up my minor acne issues. I plan to continue using the vitamins to bolster my immune system.
Read More
9
Reversed malaise
1 people found this helpful
A great product! Vitamin C works well. I experienced slight malaise, as if a cold was coming, so I took 1000mg. By morning, the symptoms had disappeared. I'm incredibly grateful.
Read More
9
Increased immunity
1 people found this helpful
Super Vitamin C has been part of my routine for nearly a month now. I haven’t fallen ill, especially during this cold season. It’s an excellent product for boosting immunity at a reasonable price. I highly recommend it.
Read More
Frequently Asked Questions
9
Reversed malaise
1 people found this helpful
A great product! Vitamin C works well. I experienced slight malaise, as if a cold was coming, so I took 1000mg. By morning, the symptoms had disappeared. I'm incredibly grateful.
10
Prevents cold symptoms
I drink vitamin C from this company regularly, except in summer. It particularly helps when I feel the onset of a cold; I take a capsule every three hours, and the next day there are no signs of a cold.
9
Increased immunity
1 people found this helpful
Super Vitamin C has been part of my routine for nearly a month now. I haven’t fallen ill, especially during this cold season. It’s an excellent product for boosting immunity at a reasonable price. I highly recommend it.
9
Effective against cold
2 people found this helpful
Vitamin C helps me tackle two issues. I began taking it as a supplement for better absorption. When I felt a cold coming, I took two capsules, and the next day, symptoms vanished as if by magic. I never believed it would work until I tried it myself. It also cleared up my minor acne issues. I plan to continue using the vitamins to bolster my immune system.
10
Immunity increased
3 people found this helpful
Vitamin C should be in every home. My life has changed since I began taking vitamin C daily. I used to suffer from frequent colds and fatigue. Since I started regular intake, my immunity has improved, and I hardly catch colds now—just a few times, and lightly.
10
Forgot about colds
I take this vitamin twice a year to prevent respiratory infections and boost immunity. I take one capsule daily after breakfast for a month. The capsules are small and easy to swallow. After using this product, I forgot about colds, and it also helped with chronic fatigue.
9
Effective for cold
Excellent vitamin C. I consume it when I sense I'm becoming unwell. By the second day, the cold tends to dissipate. I also take it with iron for better absorption.
9
Instant support for colds
An effective product from Iherb, it helps instantly with colds. I take it alongside iron.
9
Effective for colds
Great vitamin with antioxidant protection. I took it for my husband with a cold. As prescribed by the doctor, take 1 capsule twice a day. After a week, we noticed results; the cold began to disappear, and his health improved significantly. The quality and effectiveness of the product is remarkable. I have since been giving vitamin C to my family. At the first sign of illness, I ensure we take vitamin C.
9
Family winter essential
An essential vitamin for winter; I ordered it for my large family again. We start taking it in October to adjust our bodies for winter. It's very effective. In summer, some may need to restore weakened immunity—it's better to take it in cold months.
7
Effectiveness of Vitamin C on Colds
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.
References
- Hemilä H, Chalker E. Vitamin C for the common cold and pneumonia. Pol Arch Intern Med. 2025;135. 10.20452/pamw.16926
- Wang X, Ran C, Fu Y, Han L, Yang X, et al. Application of Exogenous Ascorbic Acid Enhances Cold Tolerance in Tomato Seedlings through Molecular and Physiological Responses. Int J Mol Sci. 2024;25. 10.3390/ijms251810093
