The FDA regulation of drugs versus dietary supplements.
All prescription and non-prescription drugs are regulated in the United States by the Food and Drug Administration (FDA).
But dietary supplements are treated more like special foods.
Because supplements aren’t considered drugs, they aren’t put through the same strict safety and effectiveness requirements that drugs are. So all the drugs you can buy, even without a prescription, must be proven safe and effective – but dietary supplements do not.
These products are not intended to diagnose, treat, cure or prevent any disease.