Vitamin D needs are highly individual, and achieving optimal levels can result in whole-body health benefits Key Points Vitamin D status must be measured, not guessed. Blood levels of 25-hydroxyvitamin D , not supplement...
A Statistical Oversight with Global Health Consequences Key Points The official vitamin D RDA (600 IU/day in the U.S. and 400 IU/day in the UK) is far too low. A statistical error, confusing population...
CONGRATULATIONS TO OUR VITAMIN D SCIENTISTS! A vitamin D paper published in MDPI Nutrients, “Vitamin D: Evidence-Based Health Benefits and Recommendations for Population Guidelines” has been recognized as the most cited paper published in...
Join us as Dr. Michael Holick reviews the latest research to show just how much vitamin D serum levels can affect the risk of many chronic diseases. Key Points In a review article from...
What Should You Believe About Vitamin D Research? Should You Follow the Recommendations? Join Us Tomorrow for Another Vitamin D Study Hour Key Points Dr. William Grant is a world-recognized expert in sunlight and...
March 6, 1963, to August 27, 2025 We extend our deepest respect and remembrance to Dr. Leslie Ray “L. Ray” Matthews, a distinguished trauma surgeon and internationally recognized vitamin D researcher… and a true...
The first RCT on vitamin D and cancer in 2007 showed 77% cancer prevention. That was eighteen years ago! If an intervention that costs about $10 a year can safely reduce the risk of...
A video presentation and interview with Dr. William Grant In this insightful two-part video, Dr. William B. Grant, a leading researcher on vitamin D, breaks down the latest research findings from 2024 on...
Dr. Bruce Hollis discusses a study involving 1800 pregnant women, which found a 55% decreased risk of adverse events among women who received vitamin D based on vitamin D status Key Points A study...
Dr. Michael Holick presents a 2024 Perspective and Response to Endocrine Society Vitamin D Guideline Updates Key Points In this presentation, Dr. Holick offers a quick review of vitamin D studies, including observational and...