Price History (90 days)
Quick Facts
- Form
- Capsules
- Dose
- 25mg elemental iron
- Serving
- 1 capsule
- Servings
- 60
- Vegan
- Yes
- Made in
- USA
Thorne Iron Bisglycinate 25mg
by Thorne
Thorne Iron Bisglycinate delivers 25mg of elemental iron in the gentle bisglycinate chelate form, which clinical studies show causes significantly fewer GI side effects than ferrous sulfate or fumarate. Thorne's NSF Certified for Sport designation means every batch is independently tested for over 200 banned substances. Ideal for those with iron deficiency or increased needs who cannot tolerate standard iron supplements.
AI Review Summary
Thorne Iron Bisglycinate is the gold standard for gentle iron supplementation. The bisglycinate chelate causes dramatically fewer GI side effects than ferrous sulfate — the form most commonly prescribed by GPs. NSF Certified for Sport ensures purity, and Thorne's pharmaceutical-grade excipients (leucine instead of magnesium stearate) reflect their premium positioning. The main drawback is price.
Pros
- +Dramatically fewer GI side effects than ferrous sulfate
- +NSF Certified for Sport — independently batch-tested
- +Pharmaceutical-grade excipients
- +Effective at raising ferritin levels
Cons
- -Expensive — only 60 capsules per bottle
- -25mg may be insufficient for severe deficiency
- -Overkill if you tolerate cheaper iron forms
Best For
Watch Out
- !Get iron levels tested before supplementing — excess iron is harmful
- !Take on an empty stomach or with vitamin C for best absorption
Ingredients & Composition
Active Ingredients
- Iron (as Iron Bisglycinate)
- 25mg (139% DV)
Other Ingredients
Hypromellose Capsule, Leucine, Silicon Dioxide
Clean Label Analysis
Pharmaceutical-grade excipients only. Leucine (an amino acid) replaces the more common magnesium stearate as a flow agent — a hallmark of Thorne's premium approach.
Quality & Testing
Third-Party Tested
This product has been independently tested by third-party laboratories for purity, potency, and safety.
Certifications
Additional Specifications
- Type
- Mineral
- Form
- Capsules
- Dose
- 25mg elemental iron
- Serving Size
- 1 capsule
- Fillers Analysis
- Pharmaceutical-grade excipients only. Leucine (an amino acid) replaces the more common magnesium stearate as a flow agent — a hallmark of Thorne's premium approach.
- Allergens
- Free from: dairy, eggs, gluten, soy, fish, shellfish, tree nuts, peanuts
- Made In
- USA
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Disclaimer: AIScored provides AI-generated summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.