(The USP is an independent standards-setting authority ... sometimes listed on labels as vitamin A acetate or palmitate, can increase the risk of birth defects and liver damage.

which naturopathic doctor Maura Henninger recommended when we went in search of the best drugstore vitamins. Labels like USP and NSF mean that a company has voluntarily gone “through rigorous ...

As a result, some supplement products may not contain the ingredients listed on the label. When choosing a supplement ...

set by the U.S. Pharmacopeia (USP), a nongovernmental standard-setting group, or by the European Union. But the test results revealed total PCBs in amounts that could require warning labels under ...