Overview

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
USERS' SCORE
Good
Based on 14 Reviews
8.2
Supplement Facts
Serving Size:  1 Capsule
Amount Per Serving
%DV
Vitamin C (as ascorbic acid from Tapioca)
1,000 mg
1,110%

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.
Read More
9
Vitamin C improves cold tolerance
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.
Read More

Most Useful Reviews

7.5
Boosts immune system
6 people found this helpful
I highly recommend this supplement for anyone battling colds, viruses, or ear infections. We use it regularly to enhance our immune systems. Unlike many vitamin C products, it's based on non-GMO tapioca, and it's effective without causing digestive upset!
Read More
9
Effective during colds
5 people found this helpful
This high concentration of Vitamin C is extracted from cassava, which poses no genetic modification concerns per the child's nutritionist. If I notice cold symptoms or experience physical stress, I take an additional dose before bed. It significantly improves my condition by morning! For severe colds, I take one every two hours, as my body needs C in much larger quantities when ill.
Read More
9
No colds this winter
5 people found this helpful
Fantastic protection! I have not had a single cold or flu this winter, despite being surrounded by illness! Taking this supplement has significantly bolstered my immune system, and even my allergies appear better. I intend to use it annually!
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8
  • All Researches
9
Vitamin C improves cold tolerance
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.
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.
Read More

User Reviews

USERS' SCORE
Good
Based on 14 Reviews
8.2
  • All Reviews
  • Positive Reviews
  • Negative Reviews
7.5
Boosts immune system
6 people found this helpful
I highly recommend this supplement for anyone battling colds, viruses, or ear infections. We use it regularly to enhance our immune systems. Unlike many vitamin C products, it's based on non-GMO tapioca, and it's effective without causing digestive upset!
Read More
9
Effective during colds
5 people found this helpful
This high concentration of Vitamin C is extracted from cassava, which poses no genetic modification concerns per the child's nutritionist. If I notice cold symptoms or experience physical stress, I take an additional dose before bed. It significantly improves my condition by morning! For severe colds, I take one every two hours, as my body needs C in much larger quantities when ill.
Read More
9
No colds this winter
5 people found this helpful
Fantastic protection! I have not had a single cold or flu this winter, despite being surrounded by illness! Taking this supplement has significantly bolstered my immune system, and even my allergies appear better. I intend to use it annually!
Read More
9
No cold or flu
I have been taking these for a while and have not had a cold or flu during this time.
Read More
7.5
Great for colds
5 people found this helpful
Great Vitamin C that does not upset the stomach, even in high doses. I take it myself and give it to my child during the winter season of viruses and colds. Very satisfied and will definitely buy more.
Read More

Frequently Asked Questions

9
Effective during colds
5 people found this helpful
This high concentration of Vitamin C is extracted from cassava, which poses no genetic modification concerns per the child's nutritionist. If I notice cold symptoms or experience physical stress, I take an additional dose before bed. It significantly improves my condition by morning! For severe colds, I take one every two hours, as my body needs C in much larger quantities when ill.
7.5
Speeds recovery
2 people found this helpful
Excellent! This ascorbic acid works wonders. During cold season, I take one daily, but if I catch a cold, I increase to three throughout the duration. It really accelerates my healing process.
6
Rarely catches cold
This is my fourth order. Vitamin C plays a vital role in supporting our immune systems against new viruses. I have rarely caught a cold over the past three years while taking it.
9
No cold or flu
I have been taking these for a while and have not had a cold or flu during this time.
7.5
Prevents colds
Good, I take these in the morning. They've stopped me from getting colds, and I feel a lot better in myself.
7.5
Faster recovery
A good vitamin. I took it with iron for better absorption. My husband used it during a cold—he recovered much faster.
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.

References

  1. Hemilä H, Chalker E. Vitamin C for the common cold and pneumonia. Pol Arch Intern Med. 2025;135. doi:10.20452/pamw.16926
  2. 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. doi:10.3390/ijms251810093
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