Iron (Ferrous Bisglycinate)
What this compound does
Iron is an essential mineral that helps your body make red blood cells, which carry oxygen to your muscles and organs. This form of iron is easier on your stomach, making it a good choice for people who need to boost their iron levels without experiencing discomfort. It can help improve energy levels and overall health, especially for those who may not get enough iron from their diet.
- • Individuals with low iron levels
- • Athletes needing extra energy
- • Women during menstruation
- • Pregnant women needing additional iron
- • Vegetarians and vegans with dietary restrictions
Users may start to notice improvements in energy and overall well-being within a few weeks of consistent use. Some may also see improvements in their blood tests for iron levels during routine check-ups.
- • People with hemochromatosis or iron overload disorders
- • Individuals with certain gastrointestinal conditions
- • Those taking specific medications that interact with iron
Production details below.
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How much, when
Peer-reviewed studies
- PMID: 25084991A
Deficiency correction
Raises ferritin/hemoglobin in deficiency contexts.
- PMID 36728944 · 2023RCTB
Effectiveness of weekly and daily iron administration for the prevention of iron deficiency anemia in infants
- PMID 33136134 · 2020Safety StudyB
The Efficacy and Safety of Vitamin C for Iron Supplementation in Adult Patients With Iron Deficiency Anemia: A Randomized Clinical Trial
- PMID 31855498 · 2020RCTB
Dietary Supplement Use During Chemotherapy and Survival Outcomes of Patients With Breast Cancer Enrolled in a Cooperative Group Clinical Trial (SWOG S0221)
- PMID 39834271 · 2025Meta-AnalysisB
The benefits and harms of oral iron supplementation in non-anaemic pregnant women: a systematic review and meta-analysis
- PMID 35687377 · 2022Observational StudyB
Iron-Deficiency Prevalence and Supplementation Practices Among Pregnant Women: A Secondary Data Analysis From a Clinical Trial in Vancouver, Canada
Medicine interactions
- MODERATE
Levothyroxine· thyroid_med
Iron can impair the absorption of thyroid medications.
→ Take iron supplements at least 4 hours apart from levothyroxine.
- MODERATE
Warfarin· blood_thinner
Iron can affect coagulation parameters.
→ Monitor INR levels closely when starting iron supplementation.
- MODERATE
Quinolone antibiotics· antibiotic
Iron can chelate with quinolones, reducing their absorption.
→ Separate dosing by at least 2 hours.
This page is a reference summary, not a prescription. Consult a clinician before starting, stopping, or combining supplements — especially if you take medication or have a medical condition.