Our bodies create vitamin D when ultraviolet rays in sunlight convert a protein called 7-dehydrocholesterol in the skin into a type of vitamin D known as vitamin D3. When sunlight is sparse during ...

This article was reviewed by Brian Tanzer, nutritionist and Director of Scientific and Regulatory Affairs at The Vitamin ...

By Carl E. Bartecchi, M.D. What supplements waste our money?The government and the FDA haven’t helped us with this problem.

Seventeen-year-old Christopher Herrera can no longer play sports. After Christopher ingested concentrated green tea extract labelled as a “fat burning supplement”, his liver was compromised so ...

Enhance your fitness journey with natural supplements like creatine, betaine, and carnitine, known for boosting strength, endurance, and recovery. BCAAs aid in muscle repair, while whey protein ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." According to Dr. Brad Whitley, PT, DPT, XPS, founding physical therapist of Bespoke Treatments San Diego, ...

Conquering post-workout soreness remains atop Arnold Schwarzenegger‘s to-do list in retirement. On August 11, 2025, in his Arnold’s Pump Club newsletter, he analyzed the recovery and muscle repair ...

Exercise scientist Dr. Mike Israetel is taking a closer look at the supplement industry. In a recent YouTube video aired on July 24, 2025, he broke down his top five most overrated supplements for fat ...

Creatine isn’t just for gym buffs; Virginia Tech scientists are using focused ultrasound to sneak this vital energy molecule past the blood-brain barrier, hoping to reverse devastating creatine ...

A new study suggests SPM-enriched fish oil may reduce muscle recovery time. Omega-3 fatty acids mediate the inflammation that occurs post-workout. Talk to a medical professional before adding a ...