“Selenium is an essential mineral that helps to support your metabolism, immune system, and cardiovascular health,” says Nasser. “Although needed in small amounts, it’s essential for your overall well ...

The global supplement market reached more than $485 billion in 2024, and some six in 10 adults are taking at least one dietary supplement a month, according to the U.S. Centers for Disease Control and ...

Cynthia Sass is a nutritionist and registered dietitian with master's degrees in both nutrition science and public health. Frequently seen on national TV, she's Health's contributing nutrition editor ...