The gift of measurement for YOU
December 10, 2015 Using data from our D*action project, we have created D*calculator. With this calculator you can enter your current vitamin D serum level, your desired vitamin D serum level, and your weight....
Role of Food in D Deficiency
October 21, 2015 For most societies, food is not the primary source of vitamin D. The National Institutes of Health (NIH) recommends 600 IU/day of vitamin D for anyone 1-70 years old and 800...
Role of Food Fortification with D Deficiency
October 14, 2015 At a seminar in Toronto in 2009, we had a panel of Drs Whiting, Heaney, Vieth and others addressing the question “What do we DO about it worldwide?” To solve the...
How to Choose a Daily Supplement Intake
September 16, 2015 We started GrassrootsHealth in 2007 by traveling the world and talking to vitamin D researchers. As you all know these researchers banded together to recommend everyone get their serum levels between...
Does vitamin D prevent colds and flu?
September 2, 2015 There has been a lot written about the decrease in the incidence of colds and flu (see our own chart below) and, the evidence is strong for prevention. But, what happens...