Severe vitamin D deficiency is associated with a higher rate of hospitalisation for respiratory tract infections such as bronchitis and pneumonia, according to a new study led by the University of Surrey. Scientists found...
by William B. Grant Key Points Recent vitamin D research highlights the value of observational studies, which better reflect real-world nutrient effects than traditional RCTs. Higher vitamin D status is consistently linked to lower...
by Richard Z. Cheng, M.D., Ph.D.Editor-in-Chief, Orthomolecular Medicine News Service Key Points Vitamin D levels don’t always rise as expected because individual biology is complex. Genetics, inflammation, gut health, stress, and nutrient cofactors all...
Trinity researchers have led a new collaborative study, combining large genetic datasets with satellite weather data and uncovering over 30 distinct genes that influence vitamin D status, many of which were not previously known....
Why Randomized Controlled Trials Have Become a Barrier to Real-World Health By Richard Z. Cheng, M.D., Ph.D. Editor-in-Chief Key Points RCTs were designed for drugs, not nutrition or lifestyle, so they often fail to...
Personalized vitamin D supplement doses, aimed at maintaining levels between 40-80 ng/ml, reduced risk of a repeat heart attack by 52% Key Points A large, randomized clinical trial found that treating heart attack patients...
World Vitamin D Day – November 2nd TORONTO, ON (October 29, 2025) – Vitamin D winter has begun. The sun’s UVB rays reaching earth in northern latitudes is now too weak to initiate vitamin...
IFPA urges recognition of the close link between psoriasis and mental health — and action to prevent its devastating ripple effects. Key Points IFPA launches “Stop the Domino Effect” campaign for World Psoriasis Day...
Vitamin D2 may actually deplete vitamin D3, weakening the body’s immune defenses. Researchers say vitamin D3 is more effective and should likely be the supplement of choice. Key Points Researchers have found that taking...
By Richard Z. Cheng, M.D., Ph.D. Editor-in-Chief Key Points Timing is critical: Nutrient deficiencies in pregnancy and early childhood cause permanent changes that later supplementation often cannot fix. Vitamin C: Early deficiency shrinks brain...