Key takeaways: Read the complete label, be cautious with treatment-like claims, consider medication interactions, and check seller and refund terms before purchasing.

A polished sales page does not by itself tell you whether a dietary supplement is appropriate for you. A better evaluation starts with the label, the claims, the evidence and the purchase terms.

1. Read the Supplement Facts label

NIH explains that Supplement Facts labels include serving size, dietary ingredients and amounts per serving.

2. Separate wellness claims from disease-treatment claims

FDA explains that a product intended to diagnose, treat, cure or prevent disease is a drug even if it is labeled as a dietary supplement.

3. Don't assume “natural” means risk-free

FDA and NCCIH note that supplements can involve risks, including interactions with medications or concerns for people with certain medical conditions.

4. Ask whether evidence matches the actual product

NCCIH notes that products sold to consumers may differ from products tested in research. Evidence about one ingredient does not automatically establish the effect of every commercial blend containing it.

5. Evaluate the transaction too

6. Know when professional evaluation makes sense

FDA advises consumers to talk with a healthcare professional before deciding to use a supplement. New or worsening hearing or ear symptoms deserve appropriate medical evaluation rather than relying on a dietary supplement.

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