Which supplements are NSF Certified for Sport?

65 packages, across 9 supplements. Each row below is a package we price whose NSF Certified for Sport listing we have opened and read against that exact package. We searched the database for 384 of the 385 products we track. A further 33 packages sit under a listing that names a different size of the same product. Those are in the second table, because they are the reason this page exists.

Download this table as a CSV file, one row per package with its listing number, the listing's package text and the product page. Free to reuse with a link back. What the file includes and how to cite it.

NSF issues a certificate against named packages, so a brand is never certified and a product line often is not either. Where the right-hand column has words in it, they are the listing's own package text copied as it reads, and that is what makes a row checkable: take the listing number to NSF's database and you should find the same words. 65 of the 65 rows carry it today. On the rest the read is recorded on the product page and the package text is not, so the certificate number is all this page can give you.

Certified for Sport is one program among several, and a product missing from this list is not a product that failed anything: it is one we did not find in this database. What each program covers, and which ones name a package rather than a production batch, is set out on how we compare. Prices are on each product page.

Every category we compare: the home page. Every question we answer: the question index.

What this rests on: prices we last recorded at the retailer named on each product page, which go stale, and each page says when it was checked; the products we track, not every product sold, and Amazon and Walmart are not among the stores; listings and labels read at the source, each linked from the page. Found an error? Tell us. The full method: How we compare.