Nutricost Iron Bisglycinate 25 mg Review
#2 of 9 · Best Value✓ Label verified · Supplement Facts read Sep 7, 2026Real retailer photo, cut out. Label unedited.
Buy it. Identical molecule, a fraction of the price. Same 25 mg Ferrochel bisglycinate as the practitioner brands, at about $0.07 a capsule with a 240-count bottle and published batch testing.
~$16.95~$0.07
Why It Scores 8.8 — And The Label Line Behind Each Number
Form & Bioavailability
30% of scoreFerrous 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).
- Form
- Ferrous bisglycinate chelate (Ferrochel)
Dose Appropriateness
20% of score25 mg elemental per capsule is a proper repletion dose for correcting confirmed low iron, once daily.
GI Tolerance & Safety
20% of scoreBisglycinate's low irritation profile applies here as it does to any chelate. The bulk bottle does invite indefinite use, so ferritin guidance still matters.
Third-Party Testing & Purity
20% of scorePublishes 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.
- Testing
- Per-batch third-party (ISO-accredited labs)
Value per Serving
10% of scoreAt roughly $0.07 per capsule across 240 servings, it is the cost-per-milligram leader among chelates by a wide margin.
- Size
- 240 capsules (240 servings)
- Serving
- 1 capsule daily
- Price (approx.)
- ~$16.95
- Cost / serving
- ~$0.07
- More Specs
- Elemental iron
- 25 mg per capsule
- Facility
- NSF-certified GMP; Non-GMO, gluten-free
Label verified. Every figure read from the Supplement Facts photo, Sep 7, 2026.
Marketing Claims Vs. Reality
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.
What Our Test Actually Found
The molecule is the whole point
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.
Batch testing is real — but read it precisely
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.
The 240-count is a double-edged bottle
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.
Where the savings come from
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.
Full analysis: all pros & cons (7), buy if / skip if
- Same 25 mg Ferrochel chelate as Thorne for a fraction of the price
- 240-count is the cost-per-milligram leader among chelates
- Publishes per-batch third-party test results
- Non-GMO and gluten-free
- Made in an NSF-certified GMP facility
- 'Third-party tested' is batch testing, not a product-level NSF/USP seal
- Bulk 240-count invites indefinite use — still needs ferritin guidance
- You want the gentle chelate form at the lowest cost per milligram
- You have a confirmed deficiency and want a long supply on hand
- You are satisfied with published per-batch testing over a certification seal
- You want a Non-GMO, gluten-free capsule
- You are a tested athlete needing a product-level banned-substance seal (choose Thorne)
- A 240-count bottle would tempt you into indefinite unmonitored use
Same 25 mg Ferrochel bisglycinate as the practitioner brands, at about $0.07 a capsule with a 240-count bottle and published batch testing. You forgo only the product-level NSF/USP seal — a fair trade for most people.
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.
The smart-money iron
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.
If This Doesn’t Fit — Try These
01Thorne Iron Bisglycinate
Our take: if you have confirmed low iron and want one bottle to trust, this is it.
07NOW Iron 18 mg
Our take: the maintenance and top-up choice, not the repletion choice.
04Solgar Gentle Iron
Our take: a rock-solid, widely-stocked gentle chelate you can grab almost anywhere.
Quick Answers
Is this really the same iron as Thorne?
Functionally yes — both are 25 mg of ferrous bisglycinate chelate. The difference is verification and brand: Thorne carries a product-level NSF Certified for Sport seal, while Nutricost publishes per-batch third-party testing.
What am I giving up at this price?
Only the finished-product certification seal. You still get the gentle chelate form, the correct repletion dose, and published batch testing. For most home users correcting a deficiency, that is a fair trade.
The bottle has 240 capsules — do I take it that long?
Not necessarily. Dose to correct a confirmed deficiency, then retest ferritin and stop. Research also shows alternate-day dosing can absorb iron more efficiently, which stretches the bottle further (Stoffel 2017).
Is batch testing enough to trust?
It is meaningfully better than no testing and covers identity and contaminants per batch. If you specifically need a certified banned-substance product for tested sport, step up to Thorne instead.
Sources & Further Reading
3 peer-reviewed sources, each linked to PubMed
- [1] Milman N, et al. J Perinat Med. 2014;42(2):197-206. PMID 24152889 — Ferrous bisglycinate 25 mg iron is as effective as ferrous sulfate 50 mg iron in the prophylaxis of iron deficiency and anemia during pregnancy in a randomized trial. A 25 mg bisglycinate dose matched 50 mg ferrous sulfate for preventing deficiency with fewer GI complaints, validating the form used here.
- [2] Name JJ, et al. Curr Pediatr Rev. 2018;14(2):123-129. PMID 30280670 — Iron Bisglycinate Chelate and Polymaltose Iron for the Treatment of Iron Deficiency Anemia: A Pilot Randomized Trial. Iron bisglycinate chelate significantly raised ferritin and MCH, supporting the repletion capability of this form.
- [3] Stoffel NU, et al. Lancet Haematol. 2017;4(11):e524-e533. PMID 29032957 — Iron absorption from oral iron supplements given on consecutive versus alternate days and as single morning doses versus twice-daily split dosing in iron-depleted women. Alternate-day, single-dose iron optimized fractional absorption — relevant to stretching a large 240-count bottle efficiently.
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