NSF Certified

Plain language

A trusted third-party certification mark, comparable to USP Verified. The 'for Sport' variant additionally screens for substances banned in athletic competition.

Definition

NSF Certified is a product certification operated by NSF International (formerly the National Sanitation Foundation) that verifies label accuracy, contaminant thresholds, and GMP compliance for dietary supplements. The NSF Certified for Sport variant adds screening against the WADA Prohibited List and is widely used in professional and collegiate athletics.

Related terms

• USP Verified Voluntary US Pharmacopeia program that audits supplement label accuracy, contaminants, and manufacturing practices.
• Good Manufacturing Practice (GMP) Baseline regulatory requirement for supplement manufacturers covering sanitation, batch records, and identity testing.
• Certificate of Analysis (COA) Lab report on a specific batch of a specific product. Confirms active fraction, heavy metals, and microbial counts.

References

• NSF Certified for Sport program