Iron Bisglycinate 25mg — Gentle Ferrous Chelate
25mg elemental iron as bisglycinate — significantly better tolerated than ferrous sulphate, with superior absorption. Ideal for women and athletes.
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Order dispatched, tracking info sent. Most customers take their first dose the day it arrives.
Research shows it takes ~14 days to anchor a new habit. By now, most customers have found their ideal time of day.
At 8 weeks, customers report the strongest improvements. Consistency is everything with nutritional supplements.
Over 90% of Medibro subscribers are still on the same product at 3 months — the clearest signal a supplement is working.
Iron deficiency is the most common nutritional deficiency worldwide — affecting 1 in 4 menstruating women in the UK. Our iron bisglycinate (ferrous bisglycinate) is absorbed 3–4× more efficiently than ferrous sulphate, with dramatically fewer GI side effects (no constipation, dark stools, or nausea at this dose).
Take with vitamin C to enhance absorption by up to 3×.
Benefits
- ✓Energy
- ✓Haemoglobin
- ✓Exercise capacity
- ✓Cognition
- ✓Immune function
Complete your stack
✨What customers say
From 20 reviews★ 4.7Customers appreciate the gentle and effective absorption of iron bisglycinate, which does not cause gastrointestinal issues like constipation, leading to improved ferritin and haemoglobin levels.
Some users noted that while the product is effective, they would prefer a higher dosage option for more severe deficiencies.
This supplement is ideal for individuals, particularly female athletes, who are prone to iron deficiency and require a gentle formula that supports energy levels without digestive discomfort.
Customer reviews
- ★★★★★William L.16/05/2026Gentle iron that actually works
The glycinate form is absorbed efficiently without the GI issues of ferrous sulfate. My ferritin has risen meaningfully.
- ★★★★★Alfie B.07/05/2026Gentle iron that actually works
The glycinate form is absorbed efficiently without the GI issues of ferrous sulfate. My ferritin has risen meaningfully.
- ★★★★★Finley X.07/05/2026Gentle iron that actually works
The glycinate form is absorbed efficiently without the GI issues of ferrous sulfate. My ferritin has risen meaningfully.
- ★★★★★Freya Z.02/05/2026Gentle iron that actually works
The glycinate form is absorbed efficiently without the GI issues of ferrous sulfate. My ferritin has risen meaningfully.
- ★★★★★William L.21/04/2026No constipation
Every iron supplement I have tried caused constipation. Iron bisglycinate is different. No side effects and my haemoglobin has improved.
- ★★★★★Isla P.13/04/2026Good for female athletes
Iron deficiency in female athletes is common. This gentle form supports my training without upsetting my stomach.
- ★★★★★Lily D.07/04/2026Good for female athletes
Iron deficiency in female athletes is common. This gentle form supports my training without upsetting my stomach.
- ★★★★★Henry I.29/03/2026Good for female athletes
Iron deficiency in female athletes is common. This gentle form supports my training without upsetting my stomach.
- ★★★★☆Charlotte F.16/03/2026Correct form of iron
Iron bisglycinate at 25mg elemental iron is a sensible dose. Not too high to cause toxicity, not too low to be ineffective.
- ★★★★★Ella U.07/03/2026No constipation
Every iron supplement I have tried caused constipation. Iron bisglycinate is different. No side effects and my haemoglobin has improved.
- ★★★★☆James T.02/03/2026Correct form of iron
Iron bisglycinate at 25mg elemental iron is a sensible dose. Not too high to cause toxicity, not too low to be ineffective.
- ★★★★☆Chloe V.02/03/2026Correct form of iron
Iron bisglycinate at 25mg elemental iron is a sensible dose. Not too high to cause toxicity, not too low to be ineffective.
- ★★★★★Oscar Y.12/02/2026No constipation
Every iron supplement I have tried caused constipation. Iron bisglycinate is different. No side effects and my haemoglobin has improved.
- ★★★★★Oliver B.07/02/2026No constipation
Every iron supplement I have tried caused constipation. Iron bisglycinate is different. No side effects and my haemoglobin has improved.
- ★★★★☆Isla P.01/02/2026Correct form of iron
Iron bisglycinate at 25mg elemental iron is a sensible dose. Not too high to cause toxicity, not too low to be ineffective.
- ★★★★★Nicola M.Verified buyer26/01/2026No constipation for the first time ever
Iron supplements always caused constipation and stomach pain. Iron bisglycinate is completely different — gentle, fully absorbed, no digestive issues at all. Haemoglobin levels improved on blood test.
- ★★★★☆Claire B.Verified buyer21/01/2026Energy completely different
Was always exhausted despite sleeping enough. Blood test revealed low ferritin (iron stores). 3 months on this bisglycinate form and energy levels are transformed. Absorbable form makes all the difference.
- ★★★★☆Helen W.Verified buyer05/12/2025Gentle and effective
Had terrible experiences with ferrous sulfate. This bisglycinate form is completely tolerable. Taken on empty stomach with vitamin C as recommended. Ferritin now in optimal range after 12 weeks.
- ★★★★★Victoria T.05/11/2025Essential for female athletes
Training 5 days a week depletes iron. The bisglycinate form doesn't cause GI issues during training. Haemoglobin levels optimised, VO2 max improved. Female athletes must monitor iron.
- ★★★★★Sarah K.Verified buyer19/08/2025GP confirmed levels normalised
Iron deficiency anaemia confirmed by blood test. GP prescribed iron but I asked about gentler forms. Switched to bisglycinate. Three-month blood test showed ferritin levels normalised. Better than my previous supplement.
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