NSF International

NSF International appears in Why is there a supplement craze if they don’t even work? through Marion Nestle’s advice about supplement testing marks. The episode says an NSF mark can indicate third-party testing for listed ingredients, amounts, and non-harmful levels.

In this source, NSF does not solve the whole supplement problem. It belongs to Third-Party Supplement Testing, which may improve confidence about contents and contaminants while leaving Supplement Structure Function Claims and effectiveness questions separate.

Connections

• Third-Party Supplement Testing - verification concept the source adds.
• United States Pharmacopeia - another testing mark named in the episode.
• Supplement Label Accuracy - label problem third-party testing partly addresses.
• Frank Cantone - manufacturer whose products are described as NSF certified.