Dietary Supplement Adulteration: Laboratory Approaches to Risk Mitigation.

Our assessment

This 2025 study examines the ongoing problem of adulteration in dietary supplements. The research focuses on how manufacturers can use laboratory testing to reduce the risk of adulteration, particularly after recent supply chain disruptions. The study describes the regulatory requirements for U.S. manufacturers, including Good Manufacturing Practices (GMP) that mandate quality control testing for identity, purity, strength, composition, and contaminant limits. Data not available on sample size, study design, or duration.

How it works

Think of dietary supplement adulteration as a hidden ingredient problem — a product might claim to contain one thing but actually contain something else, often cheaper or more potent. The study explains that supply chain disruptions have increased this risk. For you as a consumer, this means that manufacturers are required to use laboratory tests, including compendial methods, to verify that what's on the label matches what's in the bottle. These tests check for identity (is it the right ingredient?), purity (are there unwanted additives?), and strength (is the dose correct?) NIH ODS ↗.

Safety profile

Data not available on adverse event reports or specific side effects from the FDA data provided. The study focuses on laboratory methods for detecting adulteration rather than reporting side effects. Data not available.

Our recommendation

Choose supplements from manufacturers that follow GMP standards and conduct quality control testing. Look for third-party certification seals that verify product purity and identity. If a supplement price seems too good to be true, it may signal a higher risk of adulteration. Always check that the label clearly lists all ingredients and their amounts NIH ODS ↗.