Amino Acid & Protein Supplements

Browse and search dietary supplements drawn from the U.S. National Institutes of Health Dietary Supplement Label Database (DSLD), which catalogs more than 113,000 product labels from supplement manufacturers. The U.S. supplement market is large, industry estimates put consumer spending around $50 billion a year, and each product page below renders directly from the latest DSLD release. See our methodology for source vintage and how each ingredient panel is parsed.

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