Currently, the FDA can only cite a warning on supplement consumption if there is sufficient proof of harm, i.e., documented reports of death or illness. Additionally, current labeling laws for supplements do not guarantee safety. Four key provisions within that law make the manufacturer and the consumer responsible for determining product safety, rather than federal regulations as is the case with food and drugs. Safety is not guaranteed. No tests for effectiveness are needed.
Manufacturers do no have to prove that a supplement works.
No proof of safety is needed. Safety testing is not required. Standards are left to the discretion of each manufacturer. Health claims are permitted on labels. Claims are allowed relating to how the supplement affects the structure or function of the body.