NSF vs USP vs Informed Sport: Compare the Program and Product
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The exact program matters. A general NSF product listing, an NSF sports listing and a facility credential are different records. Start with the question you want the evidence to answer.
Compare the programs
| Program | What to examine | Primary source |
|---|---|---|
| NSF/ANSI 173 | Product label claims, formulation and specified contaminant checks | NSF overview |
| NSF Certified for Sport | The product certification plus prohibited-substance screening | NSF program distinction |
| USP Verified | Declared ingredients and amounts, specified contaminants, breakdown and manufacturing criteria | USP verification summary |
| Informed Sport | Prohibited-substance testing of each batch before release | LGC program FAQ |
| Informed Choice | A monthly blind-testing schedule; a separate program from Sport | LGC program comparison |
Choose the question before the logo
If you need to investigate label amounts, inspect the relevant program’s requirements rather than assuming every sports-testing program verifies all nutrient claims. If your concern involves drug-tested sport, check the sport program and your governing body’s current guidance. A generic brand badge does not answer either question on its own.
Match the product scope
- Copy the exact product name and formulation.
- Check flavor, country of sale and any specified size or lot.
- Open the official program directory and compare its current record.
- Resolve missing or conflicting details with the certifier.
A listing for one product does not establish certification of every product from the company. Even two certifications associated with one brand might cover different products. Our multiple-program guide explains that distinction.
Where GMP fits
Manufacturing-facility evidence has its own scope. Keep it separate from finished-product certification when assessing the records. See GMP certification explained.
Use the program and A–Z lookup for reviewed records. These programs are not interchangeable guarantees of clinical effectiveness or suitability for a particular person.
Guide text updated 2026-09-08. Individual evidence records have their own review dates. Read the evidence method.
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