Are dietary supplements FDA approved?

The Center for Food Safety and Applied Nutrition (CFSAN) by Congress in 1994.

The Food and Drug Administration (FDA) does not have any information on dietary supplement products for specific conditions or safety of their use and has not pre-cleared their purported claims. Under the Dietary Supplement and Health Education Act (DSHEA) of 1994, the responsibility for determining the appropriateness of using a dietary supplement lies with the consumer, not the FDA.