Skip to content
GLP-1GRADE

Glossary · Guides

Informed Sport

Informed Sport is a third-party program that tests supplement batches for substances banned in sport and verifies label accuracy; certified products carry the mark and a lot number you can look up in the program's database. It is most relevant to competing athletes subject to drug testing, but for any buyer it signals a brand willing to pay for outside scrutiny. We note it because it is real and verifiable — not a self-awarded badge — and its presence is a genuine point in a product's favor.

Related terms

Reader favorites

The short list — full rankings live on the rankings page.

Straight disclosure —Some links on this page are affiliate links — we may earn a commission when you buy through them, at no extra cost to you. It never changes the price you pay, and it never changes a verdict.

4.4/5 average across vetted picks

60 guides published

18 offers vetted

324 reader price checks