Initial Vitamin D Levels on the Rise
Our very first D*action test results came in just over 9 years ago, in January 2009. Over 11,500 individuals have now taken part in our “observational field trial” by sharing their vitamin D test...
Could Vitamin D Prevent a Flu Epidemic?
February 8, 2018 According to the Centers for Disease Control and Prevention (CDC) estimates, this winter’s flu season is on track to be worse than that of the 2014-2015 season when 34 million Americans...
Video Summary: The Pros and Cons of Vitamin D
William Grant, PhD, presents a 50 minute talk on vitamin D and health. A summary is below. Vitamin D Physiology Grant starts with a definition of terms and general functions associated with vitamin...
Reduce Your Chance of Getting Sick with Vitamin D
In an analysis of GrassrootsHealth D*action data, participants who have a vitamin D level of at least 40ng/ml (100 nmol/L), cut their risk of cold and flu by 15% and 41% respectively compared to...
Preterm Birth is on the Rise for the Second Year in a Row
November 1, 2017, March of Dimes announced that preterm birth rates are on the rise for the 2nd year in a row. Read more on CBS News or NBC News. The average preterm birth rate across the...
Vitamin D Hacking Using Science
Why is vitamin D important? GrassroosHealth summarized many different research papers into one chart in order to explain why vitamin D levels are critical to disease prevention: What? How do I read this? GrassrootsHealth...
How to Turn One Hospital Initiative into a World-Wide Action Plan
It typically takes 17-30 years for research to become practice. Why? Because a hospital would have to create this initiative from scratch – create a plan; cull the research; design software; define the data...
What are Optimal Levels of Omega-3? Why?
A look at the optimal omega-3 index, what it means and how it could affect cardiovascular disease. Optimal levels are above 8%.
Can Food Changes Improve an Omega-3 Index?
Research paper summary on a trial done in the military where they replaced 'normal' diet with foods higher in Omega-3s. Omega-3 Index rose to almost ideal.
Can You Get Adequate Vitamin D From Food?
GrassrootsHealth research on the food sources for vitamin D. Conclusion is that it is very hard to get enough vitamin D from food.