This is the smart-money buy. The iron molecule is identical to the pricier clinician brands — 25 mg of ferrous bisglycinate chelate — the dose is right for repletion, and Nutricost publishes per-batch third-party testing. The only thing you give up versus Thorne is a product-level certification seal, and if that does not matter to you, the savings are substantial.
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Read the complete Iron guide →Ferrous bisglycinate chelate — the same well-absorbed, gentle non-heme form as our top pick. The molecule that matched double-dose ferrous sulfate on efficacy in trials (Milman 2014).
25 mg elemental per capsule is a proper repletion dose for correcting confirmed low iron, once daily.
Bisglycinate's low irritation profile applies here as it does to any chelate. The bulk bottle does invite indefinite use, so ferritin guidance still matters.
Publishes per-batch third-party results from ISO-accredited labs and is made in an NSF-certified GMP facility — strong, but batch testing is a notch below a product-level NSF/USP seal.
At roughly $0.07 per capsule across 240 servings, it is the cost-per-milligram leader among chelates by a wide margin.
“Same 25 mg Ferrochel chelate as the pricier clinician brands”
Both use ferrous bisglycinate chelate at 25 mg elemental; the functional form is identical, which is why the efficacy and tolerance literature (Milman 2014, Name 2018) applies equally.
“Publishes per-batch third-party test results”
Nutricost provides batch-level certificates of analysis from ISO-accredited labs — real verification, though it is batch testing rather than a certified finished-product seal.
“Cost-per-milligram leader among chelates”
At ~$0.07 per 25 mg capsule over 240 servings, it undercuts every other chelate in the set several-fold.
“Non-GMO and gluten-free”
Consistent with the product's stated certifications and facility standards; a low-risk formulation claim.
“Equivalent to a product-level NSF/USP certification”
It is third-party batch tested in an NSF-certified GMP facility, but that is not the same as a product-level NSF/USP seal — the finished product itself is not certified.
An iron supplement is only as good as its form and dose, and here both match the $14 clinician pick exactly: 25 mg of bisglycinate chelate. Everything the absorption and tolerance research says about that form applies to this bottle.
Nutricost publishes per-batch COAs, which is more transparency than most budget brands offer. It is not, however, a product-level NSF or USP certification. That is the single, honest difference between this and our #1.
Eight months of iron in one purchase is excellent value and a mild risk: it makes it easy to keep dosing past the point of repletion. Treat it as a supply, not a license — retest ferritin and stop when you are replete.
You are not buying a cheaper or weaker iron. You are skipping the certification-and-brand premium. For most people correcting a deficiency at home, that is money kept, not quality lost.
The molecule is identical to the pricier clinician brands, the dose is right, and the brand publishes batch testing. You give up only the product-level certification seal — if that does not matter to you, buy this and pocket the difference.
Check Nutricost on AmazonThe same molecule with a product-level NSF Certified for Sport seal if you need certified testing.
See it on the list →A lower 18 mg maintenance dose of the same chelate at similar value.
See it on the list →A heritage-brand version of the same bisglycinate if you prefer buying in-store.
See it on the list →A 25 mg bisglycinate dose matched 50 mg ferrous sulfate for preventing deficiency with fewer GI complaints, validating the form used here.
Iron bisglycinate chelate significantly raised ferritin and MCH, supporting the repletion capability of this form.
Alternate-day, single-dose iron optimized fractional absorption — relevant to stretching a large 240-count bottle efficiently.
