What should you look for in bulk informed sport?

One logo, two lists: why a large brand certifies part of its range, how to find out which part, and the lot number check that settles it for the tub in your hand

What should you look for in a bulk sports nutrition brand that shows the Informed Sport logo is a question with a trap in it, and the trap is the assumption that the logo covers the brand. It does not. The programme certifies products, not companies, and a large UK online brand with hundreds of products on its site will typically have enrolled a part of its range, often a named certified line of protein, creatine and pre-workout products, while the rest of the catalogue, the same brand name on the same style of pouch, is sold without any batch testing for banned substances at all. The logo appears on the brand's homepage, in its advertising and in the search results, and a buyer who sees it there and then adds a tub from the plain range to their basket has bought an untested product from a brand that certifies. This is not deception on the brand's part, it is how the programme works, and the brand's product pages will show the logo on the enrolled products and not on the others. The failure is the buyer's assumption, and the first thing to look for is therefore which of the brand's two lists the product you want sits on.

The way to find out does not depend on the brand's website. The certification programme publishes a public database of every enrolled product and every tested batch, searchable by brand, product and lot number, and the database is the authority, because a product can be dropped from the programme after a failed test or a lapsed contract while the old packaging and old web pages continue to show the logo. A buyer checks three things against it. First, that the product name appears at all, which settles which list it is on. Second, that the flavour and size they are buying is listed, because programmes certify specific stock keeping units and a brand can enrol its unflavoured protein and not its flavoured ones. Third, once the tub arrives, that the lot number printed on it appears in the database as a tested batch, which is the only check that covers the tub in your hand rather than the product in the abstract. A tub whose lot number is not found has either not been tested or was made before enrolment, and either way it is on the not-enrolled list in every sense that matters to a drug-tested athlete.

The reason this matters, and the reason the certified line exists at all, is a survey the Olympic movement commissioned two decades ago. Several hundred non-hormonal supplements, the ordinary proteins, creatines, vitamins and amino acids, were bought in thirteen countries and analysed, and around fifteen percent contained anabolic steroid precursors that were not on the label, with products from manufacturers who also made hormonal products the most affected, because the contamination came from shared equipment rather than from intent. That figure is the origin of every batch testing programme in sport. It established that an athlete taking an ordinary protein powder from an ordinary manufacturer had a real chance of returning a positive test for something they had never knowingly taken, and that the only defence was testing each batch before it was released for sale. The certified line of a bulk brand is that defence, bought at a price, and the second half of this page is about the price.

One list to check and one database to check it against, and the question of what the certified line costs over the plain one, which is the next section.

The per-kilogram premium, who it is worth paying for and who it is worth nothing to, the strict liability rule that decides it, the three products most worth certifying, and the verdict

The second thing to look for is the premium. A bulk brand's certified protein costs more per kilogram than its plain protein, and the difference is the cost of the testing programme, a per-batch laboratory fee and a per-product enrolment fee, spread across the batch and passed to the buyer. For the same whey from the same factory the certified pouch is dearer by a margin that a buyer can calculate from two price tags and a kitchen scale, and the calculation is worth doing because it isolates what is being bought. It is not a better protein. The certified line and the plain line are often made on the same equipment from the same inputs, and the certified one has been through an extra step, a sample from each batch sent to a laboratory and screened against the prohibited list before release. The premium buys the screen and nothing else.

Who the screen is worth paying for is decided by a rule the anti-doping system calls strict liability: an athlete is responsible for any prohibited substance found in their sample regardless of how it got there, and a contaminated supplement is not a defence against a ban, though it can shorten one. For a drug-tested athlete, a powerlifter in a tested federation, a university or club competitor subject to testing, anyone whose career or eligibility depends on a clean sample, the premium is the cheapest insurance they will ever buy, because the alternative is a two-year or four-year ban for a batch defect they could not have detected. For everyone else, which is most of the people reading this page, the premium buys nothing they can use. A recreational lifter who is never tested faces no strict liability and gains no protection from a programme designed around it, and the contamination the programme screens for, trace steroid precursors at doses that trigger a laboratory test, is not a health risk at those levels in the way that heavy metals or undeclared stimulants would be, which the programme also screens for and which a quality brand's own release testing should catch regardless. The honest answer to the question in the title therefore splits by the reader: tested, look for the certified list and pay the premium; untested, look for the brand's own quality evidence and keep the money.

Within a bulk range, three products carry most of the certification value. Protein powder, because it is the largest-volume product, made in the largest batches on the most shared equipment, and the category where the contamination surveys found the problem. Creatine, because it is a commodity bought from a small number of global manufacturers and repackaged, so that the brand's control over the batch is lowest and the test is the only check. Pre-workout, because it is the category where undeclared stimulants have been found most often, sometimes at doses that matter for health as well as for testing. A tested athlete who certifies those three and buys the rest of their cupboard from the plain range has spent the premium where the risk sits. Vitamins, minerals and oils carry a lower contamination risk and a lower premium value, which is why many certified lines do not include them.

The worked example this site sells sits on the second list and says so: {FL} is batch tested for lead, mercury, arsenic and cadmium with the certificate available on request, UK made under GMP and BRC, 1500mg magnesium bisglycinate stated as 300mg elemental at 80% NRV in two capsules, 180 capsules for £19.99 at 22p a day, and it is not enrolled in a banned-substance programme. For a drug-tested athlete that is a reason to choose a certified magnesium instead, and the page says so rather than hiding it. For an untested lifter it is a mineral with its metals tested and its label honest, which is what the second list should look like when it is done properly. The full label breakdown is here.

The verdict: look for the list, not the logo. Search the public database for the product, flavour and size, then for the lot number on the tub, and treat anything not found as untested. Pay the per-kilogram premium if you are drug tested, on protein, creatine and pre-workout first, and keep it if you are not, spending the attention instead on the brand's own release testing, metals certificates and label honesty, which protect the health of everyone and the eligibility of no one.

What to check on the label

Questions people also ask

Does the Informed Sport logo on a brand's website mean all of its products are tested?

No, and this is the trap the page is built around: the programme certifies products, not companies, so a large brand will typically have enrolled a certified line of protein, creatine and pre-workout products while selling the rest of its catalogue untested under the same name, and the logo on the homepage covers only the enrolled products; the public database, searched by product, flavour, size and then lot number, is the authority on which list a given tub sits on, and anything not found there is untested in every sense that matters to a drug-tested athlete.

How much more does a certified bulk protein cost and what does the extra buy?

The certified line is dearer per kilogram than the plain line by a margin a buyer can calculate from two price tags and a kitchen scale, and the extra buys one thing, a screen of each batch against the prohibited list before release; it does not buy a better protein, because the two lines are often made on the same equipment from the same inputs, so the premium is insurance against a strict liability finding and is worth paying by anyone who is drug tested and worth nothing to anyone who is not.

Why do batch testing programmes exist at all?

Because of a survey the Olympic movement commissioned two decades ago, in which several hundred ordinary non-hormonal supplements bought across thirteen countries were analysed and around fifteen percent contained undeclared anabolic steroid precursors, mostly from shared manufacturing equipment rather than intent; that figure established that an athlete could fail a test from an ordinary protein powder, and that testing each batch before release was the only defence, which is the service the certified lines sell.

Which products in a bulk range are most worth buying certified?

Protein powder, creatine and pre-workout: protein because it is the largest-volume product made in the largest batches on the most shared equipment, creatine because it is a commodity repackaged from a few global manufacturers so the brand's control is lowest, and pre-workout because it is the category where undeclared stimulants have been found most often; a tested athlete who certifies those three and buys vitamins, minerals and oils from the plain range has spent the premium where the risk sits.

Is this site's magnesium Informed Sport certified?

No, and the page says so in the open: the worked example is batch tested for lead, mercury, arsenic and cadmium with the certificate on request, UK made under GMP and BRC, 300mg elemental at 80% NRV for 22p a day, and it is not enrolled in a banned-substance programme, which is a reason for a drug-tested athlete to choose a certified mineral instead and is irrelevant to an untested lifter, for whom the metals testing and the honest label are the checks that protect health rather than eligibility.

Sources

1. The international supplement contamination survey commissioned by the Olympic movement: of several hundred non-hormonal supplements bought across thirteen countries, around fifteen percent contained undeclared anabolic steroid precursors, with products from manufacturers that also made hormonal products most affected, the study that created the market for batch testing programmes. PubMed record
2. The sports supplement certification programmes: Informed Sport, Informed Choice, BSCG and NSF Certified for Sport test products or batches for banned substances, the assurance competing athletes rely on. https://sport.wetestyoutrust.com/
3. UK Anti-Doping guidance on supplements: strict liability means an athlete is responsible for any prohibited substance in their sample regardless of how it got there, contaminated supplements have produced UK anti-doping violations, and batch testing under a recognised programme is the risk-reduction step the agency describes while stating no supplement can be guaranteed free of prohibited substances. https://www.ukad.org.uk/athletes/supplements
4. The Informed programmes' operator: Informed Sport and Informed Choice are run by LGC, an accredited laboratory group whose sports-supplement testing operates under ISO 17025 laboratory accreditation, with certified products and batches published on a public database. https://sport.wetestyoutrust.com/about

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