Iron Bisglycinate
Scored by the Formulate Research Team · Last reviewed July 2026
Overview: Thorne Iron Bisglycinate
A well-absorbed form of iron that reduces gastrointestinal side effects* An optimal delivery format for iron, which is essential for healthy red blood cells.* Resists fatigue and other effects of iron deficiency in women, athletes, and others.* NSF Certified for Sport®
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| IronFerrochel® Ferrous Bisglycinate Chelate561 systematic reviews · 1964 randomised trials | 25 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide
Recommended Use
Take 1 capsule daily or as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING: This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY: If pregnant, consult your health-care practitioner before using this product. INTERACTIONS: There are no known adverse interactions or contraindications at publication date. OTHER WARNINGS: Accidental overdose of iron-containing products is a leading cause of f
Frequently Asked Questions
What is Thorne Iron Bisglycinate's Formulate score?
Thorne Iron Bisglycinate scores 96 out of 100 (grade A) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Thorne Iron Bisglycinate worth it?
Thorne Iron Bisglycinate scores 96/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Thorne Iron Bisglycinate?
Each serving contains Iron (25 mg). Serving size: 1 Capsule. 60 servings per container.
How do I take iron bisglycinate?
Take 1 capsule daily or as recommended by your health-care practitioner.
Who makes Iron Bisglycinate?
Iron Bisglycinate is made by Thorne. See Formulate's full grade and product lineup for Thorne on its brand page.
Is Thorne Iron Bisglycinate third-party tested?
Thorne lists the following certifications and testing for this product: Gluten Free, Soy Free, Dairy Free, Natural Flavors, Natural Colors, Made in USA, NSF Certified for Sport, Thorne Verified, GMP Certified.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.