Several trustworthy organizations rigorously test supplements to ensure that they contain what's listed on the label and are not contaminated, he said. They also help companies ensure they're ...

Vitamins? Minerals? Botanicals? Extracts? Choosing the right supplements can be confusing. An expert offers five tips to help you get the biggest bang for your buck.

Certifying an echinacea supplement, for instance, requires a battery of chemical tests that measure the presence or absence of particular phenols, alkylamides, and acids.

Supplement Testing MethodologyHow We Score Our Products The two biggest factors in supplement testing are whether or not a substance is safe to consume and whether or not it does what a brand says ...

Dietary supplements in the U.S. will soon carry a certification seal indicating they truly contain the ingredients and dosages they claim. The new seal of approval by U.S. Pharmcopeia, a medical ...