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Join our vitamin D screening campaign! Help sponsor participation in D*action or visit a participating sponsor. 

D*action is a crowdfunded nutrient field trial with a goal to end the vitamin D deficiency epidemic worldwide. Sponsors allow us to decrease the price of participation, thereby allowing more members and improving our data and research.

Sponsors for March 2017

How low is your low? The end of winter means low vitamin D. Test today for $49 with coupon code EndOfWinter at checkout. 

Bio-Tech Pharmacal

Bio-Tech Pharmacal has been providing quality nutraceuticals (dietary supplements) for over 32 years! Its products are trusted by over 100 research affiliations (including Mayo, Emory, Cleveland Clinic, Rutgers). They introduced many innovative products including D3-50,000 IU available in a water soluble delivery form. Many different strengths of vitamin D are available, with or without important co-factors. They are a cGMP/FDA registered facility and some products are Kosher/Halal certified.

They are offering a 10% discount during the month of February using coupon code GRHMar10. Shop now.


Solar D – Next Generation Sunscreen

A vitamin D promoting technology 

Solar D Sunscreen is designed with compositions that optimize sunlight filtering for vitamin D while helping prevent sunburn. Solar D comes in 3 forms – SPF 30, 50, and kids. Solar D has no parabens, PABA, oxybenzone, nanoparticles, gluten, or animal testing. It is fragrance-free, paraben-free, and sensitivity-free. Find out more and stock up for spring at their web store. Special offer in March – 25% off with coupon code SolarD25. Shop here.

D*action Re-sellers

Each business below is committed to screening for vitamin D deficiency in their community. They offer vitamin D*action screening kits in their store and a valuable coupon.  The coupon will be emailed to the participant after the vitamin D results have been posted with a completed questionnaire.  Please check the sponsors below for their particular offerings. 
Under no circumstances is any personal data shared from GrassrootsHealth to the sponsoring organizations.  Your data is kept confidential. 


Contact  This e-mail address is being protected from spambots. You need JavaScript enabled to view it  to find out how to become a sponsor.