Look for the mark and you'll find a safer product.
To meet the growing demands of athletes, coaches and all those concerned about banned substances in sports supplements, NSF International developed an athletic banned substances certification program. The new NSF Certified for Sport program minimizes the risk that a dietary supplement or sports nutrition product contains a substance banned by one of the major sports organizations.
NSF tests and certifies that these products contain the identity and quantity of dietary ingredients declared on the product label, but do not contain unacceptable quantities of unwanted contaminants for the recommended serving size listed on the product label. Exceeding recommended serving sizes may increase risk, so athletes should be sure to follow the serving size instructions indicated on the product and check with their health care provider before taking any sports supplement.
For a list of products that are currently certified to meet the requirements of the program, please visit our online products database.