New California law will restrict sales of some muscle-building supplements to minors

Gavin Newsom has signed legislation banning the sale of some "muscle-building supplements" to Californians under 18 years of age.

The legislation (AB 2030), which was signed on Sept. 28, covers over-the-counter diet pills and dietary supplements for weight loss or muscle building. It will go into effect on Jan. 1, 2027.

"Nonprescribed, medically unapproved products may cause dangerous side effects," the governor’s office said in its announcement. "Products can be mislabeled or contaminated...