'
NOW Supplements Vitamin C Crystals
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
USERS' SCORE
Good
Based on 1 Review
8.2
Supplement Facts
Serving Size:  1/4 Level Teaspoon (1.1 g)
Amount Per Serving
%DV
Vitamin C (Ascorbic Acid)
1.1 g (1,100 mg) 
1222% 

Top Medical Research Studies

8
Vitamin C potentially reduces migraines
Association between dietary vitamin C intake and migraine in adults: A cross-sectional study of the National Health and Nutrition Examination Survey.
Direct focus on migraine impact
We explored the connection between dietary vitamin C and migraines using data from the National Health and Nutrition Examination Survey (NHANES) that covered several years from 1999 to 2004. In our analysis, we found that 4101 participants reported their migraine experiences, with over 17% indicating they had faced them recently. Using a detailed dietary recall system to assess vitamin C intake, we conducted various statistical analyses to understand the potential effects of vitamin C on migraine occurrence.

What we discovered was quite intriguing: higher dietary vitamin C intake seemed to be associated with a lower likelihood of experiencing migraines. Specifically, our results showed that those in the highest intake category had a significantly reduced risk of migraines compared to those with the lowest intake. The odds ratio indicated that for every increase in vitamin C intake, the likelihood of migraines decreased.

This linear relationship suggests that incorporating more vitamin C-rich foods into our diets could be beneficial for individuals prone to migraines. Our findings indicate that vitamin C may serve as a useful dietary consideration for managing migraine severity and frequency. Overall, these insights could pave the way for further research and highlight the importance of nutrition in migraine management.
Read More
8
Vitamin C linked to headaches relief
Association of dietary vitamin C consumption with severe headache or migraine among adults: a cross-sectional study of NHANES 1999-2004.
High relevance to migraine research
We explored the link between dietary vitamin C and the occurrence of severe headaches or migraines among adults in the United States. This research utilized data from the National Health and Nutrition Examination Survey (NHANES) conducted from 1999 to 2004, focusing on participants' vitamin C intake alongside their headache history.

After analyzing responses from 13,445 individuals, we observed that around 20.42% reported experiencing severe headaches or migraines. Importantly, we found a significant negative relationship between vitamin C consumption and the likelihood of these headaches. In fact, those in the highest quartile of vitamin C intake had 22% lower odds of suffering from severe headaches or migraines compared to those in the lowest quartile.

Our findings indicate that increasing vitamin C intake may help reduce the risk of experiencing severe headaches or migraines. Interestingly, subgroup analyses revealed that this relationship varied by gender, highlighting the need for more tailored dietary recommendations based on demographic factors. Overall, our study suggests that a diet rich in vitamin C could play a role in managing migraine symptoms.
Read More
8
Vitamin C linked to fewer migraines
The association between dietary antioxidant quality score and intensity and frequency of migraine headaches among women: a cross-sectional study.
Study highlights antioxidant benefits
We conducted a study focusing on how dietary antioxidants, particularly vitamin C, may impact migraine intensity and frequency in women. Our research involved 265 participants, where we assessed their dietary intake and calculated a Dietary Antioxidant Quality Score (DAQS) based on their consumption compared to daily recommended values.

Participants reported their migraine experiences using standardized tools to measure both intensity and frequency. Interestingly, we observed that those with higher DAQS—indicating better antioxidant quality in their diets—tended to experience lower intensity and frequency of migraines.

Specifically, our findings suggested a strong connection between vitamin C intake and reduced migraine severity. In our analyses, individuals consuming more vitamin C reported less intense headaches. This suggests that increasing vitamin C in the diet could be a helpful strategy for those suffering from migraines. However, while we found significant associations, further research is necessary to confirm these results fully.
Read More

Most Useful Reviews

4.8
Headaches experienced
There can be side effects when overdosing on vitamin C, which I have noticed, especially with mega doses. Initially, I faced significant headaches and migraines, particularly at the back of my head. After reassessing my intake, I now drink only a small amount of water with the vitamin. It's affordable and good value for money but be cautious of the potential side effects, such as heartburn and headaches.
Read More

Medical Researches

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
  • All Researches
8
Vitamin C potentially reduces migraines
Association between dietary vitamin C intake and migraine in adults: A cross-sectional study of the National Health and Nutrition Examination Survey.
Direct focus on migraine impact
We explored the connection between dietary vitamin C and migraines using data from the National Health and Nutrition Examination Survey (NHANES) that covered several years from 1999 to 2004. In our analysis, we found that 4101 participants reported their migraine experiences, with over 17% indicating they had faced them recently. Using a detailed dietary recall system to assess vitamin C intake, we conducted various statistical analyses to understand the potential effects of vitamin C on migraine occurrence.

What we discovered was quite intriguing: higher dietary vitamin C intake seemed to be associated with a lower likelihood of experiencing migraines. Specifically, our results showed that those in the highest intake category had a significantly reduced risk of migraines compared to those with the lowest intake. The odds ratio indicated that for every increase in vitamin C intake, the likelihood of migraines decreased.

This linear relationship suggests that incorporating more vitamin C-rich foods into our diets could be beneficial for individuals prone to migraines. Our findings indicate that vitamin C may serve as a useful dietary consideration for managing migraine severity and frequency. Overall, these insights could pave the way for further research and highlight the importance of nutrition in migraine management.
Read More
8
Vitamin C linked to fewer migraines
The association between dietary antioxidant quality score and intensity and frequency of migraine headaches among women: a cross-sectional study.
Study highlights antioxidant benefits
We conducted a study focusing on how dietary antioxidants, particularly vitamin C, may impact migraine intensity and frequency in women. Our research involved 265 participants, where we assessed their dietary intake and calculated a Dietary Antioxidant Quality Score (DAQS) based on their consumption compared to daily recommended values.

Participants reported their migraine experiences using standardized tools to measure both intensity and frequency. Interestingly, we observed that those with higher DAQS—indicating better antioxidant quality in their diets—tended to experience lower intensity and frequency of migraines.

Specifically, our findings suggested a strong connection between vitamin C intake and reduced migraine severity. In our analyses, individuals consuming more vitamin C reported less intense headaches. This suggests that increasing vitamin C in the diet could be a helpful strategy for those suffering from migraines. However, while we found significant associations, further research is necessary to confirm these results fully.
Read More
8
Vitamin C linked to headaches relief
Association of dietary vitamin C consumption with severe headache or migraine among adults: a cross-sectional study of NHANES 1999-2004.
High relevance to migraine research
We explored the link between dietary vitamin C and the occurrence of severe headaches or migraines among adults in the United States. This research utilized data from the National Health and Nutrition Examination Survey (NHANES) conducted from 1999 to 2004, focusing on participants' vitamin C intake alongside their headache history.

After analyzing responses from 13,445 individuals, we observed that around 20.42% reported experiencing severe headaches or migraines. Importantly, we found a significant negative relationship between vitamin C consumption and the likelihood of these headaches. In fact, those in the highest quartile of vitamin C intake had 22% lower odds of suffering from severe headaches or migraines compared to those in the lowest quartile.

Our findings indicate that increasing vitamin C intake may help reduce the risk of experiencing severe headaches or migraines. Interestingly, subgroup analyses revealed that this relationship varied by gender, highlighting the need for more tailored dietary recommendations based on demographic factors. Overall, our study suggests that a diet rich in vitamin C could play a role in managing migraine symptoms.
Read More

User Reviews

USERS' SCORE
Good
Based on 1 Review
8.2
  • All Reviews
  • Positive Reviews
  • Negative Reviews
4.8
Headaches experienced
There can be side effects when overdosing on vitamin C, which I have noticed, especially with mega doses. Initially, I faced significant headaches and migraines, particularly at the back of my head. After reassessing my intake, I now drink only a small amount of water with the vitamin. It's affordable and good value for money but be cautious of the potential side effects, such as heartburn and headaches.
Read More
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