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Newsletter Archive


March 4, 2015


To this end, 'Success,' we are asking you to please take a few minutes this week to answer a survey about how we can add value to YOU as a participant in this process. We have some great things... what matters most to you?  And, what else would you like to see?


February 25, 2015

Controversy or Self-Interest?

This newsletter highlights a recent study that caught our eye for all the wrong reasons.  Read up about that study and decide for yourself whether it could be considered controversy or self-interest.  Also included are interviews with D*action participants, and the importance of getting your follow-up tests.


February 18, 2015

What About Vitamin D?

We wrote this newsletter for you to take grassroots action. The information included is meant for someone new to vitamin D. For most on our subscription list this is old news. But our hope is for you to take a moment, open it up, and forward this newsletter to at least 5 people you know. Take D*action now!


February 11, 2015

GrassrootsHealth Customer Service

In this newsletter, we welcome Candace Leenheer, our new customer service representative! She started with GrassrootsHealth at the beginning of 2015, so if you have needed help - you have probably communicated with her.  Great to have you join us Candace!


February 4, 2015

Announcing New Pregnancy Disease Prevention Chart

Our initial DIP chart has been instrumental as a communication tool in clinics, doctor's offices, and community centers across the country. This new chart focuses on pregnancy and the child and is a great way to visually share the key research that we have written about in the last few newsletters.

January 28, 2015

Vitamin D Reduces Preterm Birth

GrassrootsHealth collaborated with Dr. Carol Wagner of MUSC and other researchers to publish a new paper that demonstrates 1) maternal vitamin D status closest to delivery date is more significantly associated with preterm birth and 2) participants with a serum 25(OH)D concentration of at least 40 ng/ml in the 3rd trimester had a 47% reduction in preterm birth when compared to those with a concentration less than 40 ng/ml.  


January 21, 2015

The IOM Got it Wrong! 

Our focus has always been that 20 ng/ml was not sufficient.  It turns out that there's an even more serious problem: a review of the IOM's statistical methods shows that they were not correct - 600 IU/day will not get 97.5% of the population to 20 ng/ml. Instead it will only get 50% of the population to that level. More on that, and, an exciting upcoming webinar with the Organic & Natural Health Association.

January 14, 2015

Your Data Your Answers - Occupation and Sunlight

This week we want to share D*action data with respect to how much time participants are regularly in the sun due to their occupation and whether that affects serum level or supplementation habits.  


January 7, 2015

GrassrootsHealth State of the Union 

Much has happened that has helped structure our organization to meet your needs.  We are pleased to share our 'state of the union' letter to start out the New Year.

December 31, 2014

Vitamin D Resolutions 

Happy New Year! We would like to hear your New Year's goals and thus are launching the contest described in this newsletter.  We will be reading each entry, so please enter! 

December 24, 2014

The Gift of Prevention 

This holiday let's give the gift of knowledge and prevention!  Here's how...

December 17, 2014

The Power of Sunshine 

At our seminar last week, a new member of our scientist panel, Dr. Alexander Wunsch of Wismar University of Applied Sciences, Germany, gave a talk on "Why the Sun is Necessary for Optimal Health."  This newsletter summarizes his key points and more on the power of sunshine for our health.

December 10, 2014

Your Data, Your Answers - Latitude 

The GrassrootsHealth D*action cohort, comprised of 7,123 members, is spread across 51 different countries. With such a diverse sample population, does location as measured by latitude play a part?

December 3, 2014

Measurement is the Key to Action 

MEASUREMENT provides every individual with the information needed to make a logical, informed decision about their health. In this newsletter we discuss how it puts you in charge. 

November 26, 2014

Thank you for your support 

On the eve of Thanksgiving we would like to take the time to thank you, our participants and followers, for all the work that has been done since we founded GrassrootsHealth in 2007. 

November 19, 2014

You Ask Lots of Questions 

We cannot answer all of your questions in one newsletter. Instead, we want to tell you how those questions are guiding us, who is along for the ride, and how you can look forward to more answers going forward. 


November 5, 2014 

Vitamin D and Age

In this issue of our newsletter we revisit the D*action cohort for more of Your Data, Your Answers. We analyze the data many different ways and this month we wanted to show you how your vitamin D replete community looks with respect to age. 


October 29, 2014

Vitamin D Day 

As Vitamin D Day (November 2) approaches, we can all do our part to help spread the word about this deficiency epidemic. I hope you all take a moment to review some of the basic facts about vitamin D below and then share the information with others. 


October 23, 2014 

Vitamin D for Public Health Seminar

This seminar, presented by UC San Diego School of Medicine and GrassrootsHealth, has been developed as an educational opportunity to present and discuss the science of vitamin D and sunshine. The objective of the meeting is to leave with an implementation plan for your group – using vitamin D and sunshine to optimize health.


October 15, 2014 

Vitamin D and Gender

In this newsletter we give you a peek at some of the D*action data as it relates to gender. Sometimes the data is surprising and other times, it is what you expect.  Either way, you have to look at it to know.

October 8, 2014 

The Benefits of Sunshine

The sun can help our health when we use its power wisely, and avoiding it can be detrimental. GrassrootsHealth asked some of our panel of experts about sunshine, and compiled some of their responses to share with you.

October 1, 2014 

Prevent Breast Cancer 

At GrassrootsHealth, October is Breast Cancer Prevention Month.  We don't need a special month to be aware.  Let's change the focus this month - let's prevent breast cancer.


September 24, 2014 

Common D*action Questions  

This newsletter is dedicated to answering common questions regarding D*action, the process, the blood spot kit itself, and Vitamin D health in general.  


September 17, 2014 

Taking Vitamin D Out to Your Community  

Take *action!  GrassrootsHealth has developed a platform that will kickstart Protect Our Children NOW! in your community. 


September 10, 2014 

The Do-It-Yourself Model of Health  

This newsletter is the second in a three-part series about GrassrootsHealth and the results of our crowdfunded D*action project.

September 3, 2014 

Who Cares About Vitamin D?  You Do!

This newsletter is the start of a three-part series on crowdfunding. It has become a wave for startup companies on the Internet, but from our knowledge GrassrootsHealth is the first public health project to be crowdfunded.

August 27, 2014 

Is Daily Dosing Important?

The mainstream medical field thinks of vitamin D only for bone health but we want them to broaden this perspective to include proper cell growth and healing. Dr. Bruce Hollis demonstrates why treatment of vitamin D for these two things are vastly different - how vitamin D is absorbed into the system, used, and then stays in the system to continue to heal.

July 16, 2014 

Diabetes Prevention with Vitamin D

April 1, 2014

New Endorsements, Low April Vitamin D Levels 

February 18, 2014

Vitamin D Controversy 


January 11, 2014

News From GrassrootsHealth