The contents and purity of nutritional/dietary supplements are closely tested and regulated by the Food and Drug Administration (FDA). True False

The statement is False.

While the Food and Drug Administration (FDA) does have regulatory authority over dietary supplements, the level of oversight is notably less stringent compared to pharmaceuticals. Dietary supplements do not require pre-market approval from the FDA to be sold. This means that manufacturers are responsible for ensuring the safety and efficacy of their products before they reach the market. In practice, this can lead to variations in the contents and purity of supplements, as products may not undergo rigorous testing as drugs do.

The FDA can take action against a dietary supplement if it is found to be unsafe or misbranded after it is on the market. However, the lack of pre-market evaluation means that consumers may encounter products with misleading labels or variable ingredient quality. Hence, while the FDA provides some level of oversight, it does not assure the contents and purity of dietary supplements in the same way it does for medications.