NSF International is a public health and safety company whose Certified for Sport program makes it easy for athletes and coaches to identify nutritional supplements that do not contain any banned substances and are safe to take.

View the Certified for Sport® Approved Products List here


The program’s objective is to certify that participating sports supplement manufacturers have met NSF’s stringent independent certification process guidelines, which were developed through a consensus process involving regulatory, sports industry and consumer groups. A key component of this program is an NSF Mark on each product label, to show athletes, coaches and consumers that a sports supplement has met NSF’s comprehensive Certified for Sport® program guidelines.

This program, which focuses primarily on the sports supplement manufacturing and sourcing process, provides key preventive measures to:

  • Protect against adulteration of products
  • Verify label claims against product contents
  • Identify athletic banned substances in the finished product or ingredients


This program is part of NSF’s successful 65-year history of providing certification programs for food, water and consumer goods. Specifically, the NSF Certified for Sport® Program builds on NSF’s expertise in the areas of dietary supplements and functional foods:

  • NSF developed and maintains the only accredited American National Standard to certify dietary supplements, NSF/ANSI Standard 173.
  • By building on NSF/ANSI 173, NSF developed a comprehensive product testing program in NSF-accredited laboratories and an extensive manufacturing process evaluation to ensure the actual product contents match what appears on the label.
  • NSF’s history of independence led to a partnership with the National Football League and the NFL Players Association to develop and administer the NFL/NFLPA Supplement Certification Program, a first-of-its-kind program designed specifically for professional football.

Laboratory Capabilities

NSF International’s Certified for Sport® laboratory testing services help our clients establish product stewardship by confirming content and purity, compliance, and assessing public safety and environmental concerns on products used by athletes.

Our state-of-the-art laboratories, accredited to ISO 17025, conduct routine analyses according to U.S. FDA Standard Methods, AOAC Official Methods, USP monographs and more for:

  • Organic and inorganic analyses
  • Ingredient confirmation
  • Contaminant analysis
  • Heavy metals
  • Pesticide residues
  • Processing impurities
  • Dioxin
  • Unknown mixtures

The NSF laboratories maintain continual investment in the latest technologies and have a large number of analytical instrumentation including GC, GC/MS, GFAA, ICP, ICP/MS, LC/MS, HPLC, Hi-res GCMS, TOC, and IC. With a dedicated staff of highly skilled professionals trained in analytical chemistry, biochemistry, environmental chemistry, food and plant science and nutrition, our clients can be assured of thorough testing and accurate results to meet today’s public health and safety needs.

Download the NSF for Sport App for FREE!

NSF for Sport App now available in both the Apple App Store and Android Marketplace. Download FREE of charge. More information here.