Excessive vitamin D supplementation can lead to serious health issues, including digestive problems, dangerously high calcium ...

Vitamin A is essential for body functions, including supporting vision and the immune system. You get it as provitamin ...

Researchers analyzed 11 trials with 655 adults and discovered that taking vitamin D2 supplements decreases the body's vitamin ...

Exhaustion is the number-one sign of a vitamin D deficiency. So if you’re feeling tired—even when you’ve gotten enough ...

The best supplements to balance hormones include magnesium, calcium, omega-3 fatty acids, vitamins D, B6, and B12, adaptogens ...

Vitamin K is a fat-soluble vitamin needed for blood clotting and bone health. Foods with more vitamin K than kale include dark, leafy greens, broccoli, and Brussels sprouts.

From raw milk to cod liver oil, few of Kennedy's professed alternatives to mainstream medicine pass scientific muster.

Vitamin B12 plays a key role in keeping your body running smoothly, and some people may need supplements more than others.

Polycystic ovary syndrome (PCOS) is a common hormonal condition which affects the way the ovaries work. According to the NHS, ...

"Carrots are little orange nutrition powerhouses," Bunn says. "They are packed with beta-carotene, which your body turns into ...

Can oral collagen supplements keep your skin healthy? Farah Moustafa, MD, an assistant professor at Tufts University School ...