Know your D level

April 13, 2016 Last week, we presented the results of a study that we did with a combination of YOUR data and data from the randomized trial published in 2007 by Drs Lappe and...

The Importance of Regular Testing

February 24, 2016 The number one question I receive continues to be, “How much should I take?” The answer to that question also continues to be, “There is no magic amount. You have to...

Your Nutrient Profile

December 30, 2015 While vitamin D is important, it is not the only nutrient or strategy that we use to improve our health and prevent disease. GrassrootsHealth is in the process of expanding our...

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....

Recognition for Dr. Robert Heaney

December 2, 2015 Dr. Robert Heaney was presented with a Lifetime Recognition award at the US House of Representatives on his birthday, November 10th. Dr. Heaney is our Research Director and has been very...

Announcing D*party

September 23, 2015 Many of you have asked us over the years how you can help – we have found a way – we are launching D*party. This is a way for you to...

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...