What is an RDA? Who sets the standards? The National Academy of Sciences (NAS) is a private, non-profit institution comprised of scholars in various scientific fields, most of whom donate their time. It was...
Two different research groups conclude the US RDA is off by an order of magnitude GrassrootsHealth scientists and staff have authored and published a paper, citing the D*action data, calling for the Institute of...
Dr. Robert Heaney†, former research director for GrassrootsHealth, was interviewed by Dr. Joseph Mercola about the current US RDA for vitamin D. Most vitamin D researchers disagree with the current RDA, citing it is...
Omega-3 deficiency is a fast-evolving global health concern. It can lead to a higher risk of chronic disease, particularly heart disease, cognitive decline, and other health problems. Over 23,000 published research papers support positive...
Interested in joining D*action+Omega-3, but want to know more before doing so? Here are some commonly asked questions and answers about the project and the Omega-3 Index test. Q: What is the Omega 3...
Review of Research Paper Sunlight: For Better or For Worse? A Review of Positive and Negative Effects of Sun Exposure Han van der Rhee et al. Cancer Research Frontiers May 2016 Read Paper Researchers...
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...
What is a minimum erythema dose? An “erythema dose” is used by doctors to define the amount of ultraviolet radiation, from the sun or ultraviolet lamp, which results in a reddening of the skin....
Studying Vitamin D Production and Skin Damage on 16 Individuals Concurrent beneficial (vitamin D production) and hazardous (cutaneous DNA damage) impact of repeated low‐level summer sunlight exposures S J Felton et al. British Journal...
The ultraviolet index or UV index is a measurement of the strength of the sun’s ultraviolet rays. It is 0 in the dark of night and 10-11 in the middle of a summer day...