When you order your kit, you will be participating in this project and study. The D*action project is the world’s largest project that collects data through the active involvement of its participants. The only way to know for sure if you are vitamin D deficient is to regularly test your blood levels, which you can do with this at-home test kit developed and offered by GrassrootsHealth as an integral part of their D*action consumer-sponsored project. Unfortunately, many people are deficient in vitamin D because they aren’t able to obtain enough of the vitamin through direct sunlight and their diet alone. We do not make any profit on the sale of this third-party test kit we offer it solely as a convenience to our customers. Vitamin D*action Test Kit for Consumer-Sponsored Research Participationĭid you know that 9 out of 10 Americans may be deficient in vitamin D and not even know it?Īs a courtesy and convenience to our customers who wish to gain knowledge about their vitamin D levels, is offering for sale a third-party vitamin D test kit (developed and offered by GrassrootsHealth) designed for participation in a consumer-sponsored project to gather information on vitamin D levels in the population (The D*action project).

Mercola vitamin d video