Since we know that sun exposure is an important factor in the natural synthesis of vitamin D, we ask our D*action participants a few questions about their sun habits. In each questionnaire, participants are...
Have you tested your vitamin D lately? You may still be affected by deficiency resulting from this past winter! The chart below demonstrates the profound influence that season can have on vitamin D levels...
The results of a study comparing vitamin D levels in 1998-2000 vs. 2009-2011 among middle-aged women participating in the Study of Women’s Health Across the Nation (SWAN) were published this month (April 2019) in...
Vitamin D has many uses in the body and comes from many sources. In previous blogs, we have discussed how to increase vitamin D levels by getting vitamin D from food, supplements, and sun....
At GrassrootsHealth, one of our goals is to provide information about the importance of maintaining a vitamin D blood level of 40-60 ng/ml, as recommended by our panel of 48 international vitamin D scientists....
Results from the SUNSHINE trial, a randomized clinical trial testing whether vitamin D supplementation improves outcomes in advanced or metastatic colorectal cancer patients, was published last week (April 9, 2019) in JAMA. In this...
A recent case report in the Canadian Medical Association Journal about a man with kidney failure has been picked up by many news sources as a warning against vitamin D supplementation. Was vitamin D...
April is Autism Awareness Month — did you know that vitamin D and omega-3s could benefit those with Autism Spectrum Disorder (ASD)? Published last month in the Journal of Steroid Biochemistry and Molecular Biology...
GrassrootHealth believes that the key to moving research into practice is to equip individuals with the knowledge needed to take charge of their own health. By providing people with information about the health benefits...
We are often asked, “If I eat a healthy diet, can’t I get enough vitamin D from food alone?”. Our response is “Generally, no – most people will need to supplement to reach the...