Your supplements might not contain what’s on the label. The US’s leading expert shared 3 tips for buying safe products that are right for you. [Video]

From colostrum and creatine to lion’s mane, it feels like every few months there’s a buzzy new supplement and debate over whether it works. But another equally important question — the quality and contents of the product you choose — often gets less attention, US’ top supplement expert told Business Insider.

Dietary supplements aren’t FDA-regulated like drugs, and the onus lies on manufacturers to ensure their products are safe and accurately labeled. The FDA can remove a supplement from the market if it discovers it is adulterated or misbranded.

As such, dietary supplements aren’t uniform, Stefan Pasiakos, the director of the Office of Dietary Supplements at the National Institutes of Health, said. One multivitamin, for example, could contain a few essential vitamins and minerals, while another could feature a huge number of micronutrients mixed with various non-required nutrients, he said.

This can lead to quality control issues including contaminationand inaccurate labeling, …