Third-party certification has become an important part of the global sports nutrition industry.
For athletes and other drug-tested professionals, it can reduce the risk that a supplement contains a prohibited substance.

For brands, retailers and consumers, some certification programmes provide additional assurances regarding product quality, manufacturing practices and contaminants.
But not all sport certification programmes are the same, reports Oliver Catlin (pictured), President of the Banned Substances Control Group (BSCG)
The distinctions can include the number and types of substances screened, how often products are tested, whether every production lot or batch is evaluated, the extent of manufacturing and quality-control review and whether label claims and contaminants are independently verified.
Understanding those differences is important because a certification mark alone does not fully explain what’s been evaluated.