All supplements fall under the FDA, which regulates their production, marketing and sale.
1. All manufacturing facilities are regularly inspected by the FDA and must adhere to Good Manufacturing Practices, which cover everything from verification of raw materials to product testing and labeling.
2. All marketing claims made by the manufacturer are closely monitored to make sure no product claims to cure or treat any disease or its symptoms.
3. Any new ingredient must be submitted to the FDA for review and approval before it can be used in a supplement.
4. If an ingredient is thought to be harmful, the FDA must decide if a) safety warnings need to be included on the label, or b) the ingredient should be banned and taken off the market