In the United States, a food (dietary) supplement is defined under the Dietary Supplement Health and Education Act of 1994 as a product taken by the mouth that contains a dietary ingredient that is intended as a supplement to the diet. By virtue of the act, this dietary ingredient could be one or any combination of the following:
Diet supplements are not regulated in the same manner as drugs. The FDA does not have primary responsibility over their safety. Instead, that role falls to the manufacturer of the supplement itself.
Now, compounds sold under the dietary supplement law cannot make claims about being able to cure diseases. As the FDA states it:
|Biotin(B7)||Folic Acid (B9)|
|Riboflavin (B2)||Thiamine (B1)|
|Vitamin D||Vitamin C|
|Vitamin K||Niacin (B3)|
|Vitamin E||Pyridoxine (B6)|