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Vitamin C is an important nutrient for immune function and studies have shown that taking vitamin C could reduce the risk of getting a cold. Using the data you provided for the GrassrootsHealth study, we assessed the effect of supplemental vitamin C intake on the occurrence of colds.

We found that the percent of participants who experienced a cold in the prior 6 months was 9% lower for those who reported usually taking supplemental vitamin C compared to those who did not, however the difference was not statistically significant.

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This suggests that taking vitamin C alone could reduce the risk of colds, but we will explore further by assessing the combined effect of vitamin C and vitamin D status in a future blog post.

How are your nutrient levels responding to supplementation?

Make sure you know your vitamin D level (with a target of 40-60 ng/ml or 100-150 nmol/L) and Omega-3 Index (with a target of 8% or higher) levels, as well as your levels of essential nutrients, such as magensium. Through GrassrootsHealth Nutrient Research Institute, you can also test your inflammation levels through the measurement of hsCRP. Find out your levels today! Log on to the shop (click the link below) to get your tests and see for yourself if your level can be improved.

Make sure you track your results before and after, about every 6 months!

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How can I track my nutrient intake and levels over time?

To help you track your supplement use and nutrient levels, GrassrootsHealth has created an online tracking system called myData-myAnswers. For each specific supplement, you can track what days you take it, how much, and many other details. This will help you know your true supplemental intake and what patterns of use work for you to reach and maintain optimum nutrient levels. Check it out today!