Could Periodic Doses of 60,000 IU Vitamin D to New Breastfeeding Mothers Help Prevent Vitamin D Deficiency in Both Mothers & Infants?

In response to an upcoming publication by Trivedi et al., Dr. Carol Wagner, a member of the GrassrootsHealth Scientist Panel, writes a compelling summary of the current status of vitamin D deficiency among new...

Are both supplemental magnesium and vitamin K2 combined important for vitamin D levels?

Key Points Using the data provided for the GrassrootsHealth study from almost 3,000 participants with supplemental magnesium and vitamin K2 information, we plotted every participant’s supplemental vitamin D intake (dose) and blood level (response)...

Updated analysis on dose response between fish oil and krill oil supplements among GrassrootsHealth participants

Last year, GrassrootsHealth published a paper that assessed the EPA+DHA intake requirement to achieve an Omega-3 Index of 8% or higher, the optimal level for health, using YOUR omega-3 data. One piece of this...

As Children and Teens Age, Vitamin D Levels Decrease

Our last post covered a story about one of our employees whose 12 year old son recently had a vitamin D level of 18 ng/ml (what a surprise!); we also briefly looked at vitamin...

Updated analysis on the amount of EPA+DHA needed to achieve an Omega-3 Index of 8%

Is supplemental vitamin C important for vitamin D levels?

In a previous blog we showed how much supplemental vitamin C GrassrootsHealth participants report taking. In today’s blog we will investigate whether supplemental vitamin C intake affects vitamin D levels. Using the data provided...

What if you don’t take vitamin D supplements?

In our last post, we revisited the topic of vitamin D in our food. For most people, what we eat simply does not provide us with the amount of vitamin D our bodies need....

Can we get enough vitamin D through food?

The National Institutes of Health (NIH) recommends 600 IU/day of vitamin D for anyone 1-70 years old and 800 IU/day for those over 70. However, this recommendation is based on maintaining bone health with...

Is supplemental magnesium important for vitamin D levels?

In a previous post we showed how much supplemental magnesium GrassrootsHealth participants report taking. Today we will investigate whether supplemental magnesium intake affects vitamin D levels. Using the data provided for the GrassrootsHealth study...

Magnesium Levels Among GrassrootsHealth Participants

Magnesium is a mineral essential for many functions within the body including blood pressure regulation, bone health, blood glucose control, and vitamin D activation. Magnesium deficiency is common world-wide and low magnesium levels have been...