Vitamins and supplements have gained popularity in recent years, making it challenging to determine which ones are worth the investment. Learn which vitamins work and which ones to skip.

Magnesium is a popular sleep supplement, and some claim they've become addicted to it, though experts say that's not what's happening.

Today, protein-fortified foods and protein supplements form a market worth tens of billions of US dollars, with fitness ...

Magnesium is a mineral that provides several key functions in the body. It keeps your muscles strong, regulates blood sugar levels and contributes to heart health. Dr. Jacob Teitelbaum, a ...

More Americans are turning to peptides for muscle building, skin rejuvenation, and to try and live longer even though the ...

The $177B supplement market is booming—but oversight hasn’t caught up. Experts share what consumers need to know about safety ...

Polyphenols are the next big thing in nutrition — but what are they? - The wellness world is buzzing about their link to ...

This story is from Manual, GQ’s flagship newsletter offering useful advice on style, health, and more, four days a week. Sign up here to get it in your inbox. Like protein, creatine, and vitamin D, ...

Peter Weiss, MD, is a practicing OB/GYN and former Assistant Clinical Professor at the UCLA School of Medicine. You can eat a balanced diet and get regular exercise to help manage PCOS symptoms.