Biological Effects of Sunlight

Paper Review: Biological Effects of Sunlight, Ultraviolet Radiation, Visible Light, Infrared Radiation and Vitamin D for Health Michael F. Holick, PhD, MD Boston University Medical Center Anticancer Research March 2016 Read Paper History of...

Vitamin D and Sunlight for Public Health

Paper Review: Sunlight and Vitamin D: Necessary for Public Health A GrassrootsHealth Paper Published in the Journal of the American College of Nutrition June 22, 2015 Read Paper This paper was created from the...

Skin Type Matters

Does your skin type determine how much sun is healthy for you? Is sun exposure individualized? Yes! Sun exposure is very individualized. In order to get sensible sun exposure you need to take into...

what amount of sun is right for you?

What Amount of Sun Is Right for You?

Sunshine is important for your health, but before you get sun rays you need to assess your current situation. We want to get sunshine and all its beneficial aspects, but we don’t want to...

March 8 is International Women’s Day

International Women’s Day is a global day of celebration for the achievements of women. In light of that, we want to celebrate the research and work of some very special women in the world...

Initial Vitamin D Levels on the Rise

Our very first D*action test results came in just over 9 years ago, in January 2009. Over 11,500 individuals have now taken part in our “observational field trial” by sharing their vitamin D test...