• FDA Sends out Warning Letters to Supplement Manufacturers

    The US Food and Drug Administration (FDA) sent out ten warning letters on 24 April to manufacturers and distributers of products containing the dietary supplement dimethylamylamine (DMAA), warning them that the products are adulterated because the safety of the ingredient has not been established with the agency. "Before marketing products containing DMAA, manufacturers and distributors have a responsibility under the law to provide evidence of the safety of their produc...