Iron Bisglycinate (Ferrochel)
Iron bisglycinate (Ferrochel) is a chelated iron supplement where iron is bound to two glycine amino acids for enhanced absorption. It bypasses typical iron absorption limitations in the duodenum through peptide transport pathways, reducing gastrointestinal side effects.

Origin & History
Iron Bisglycinate is a chelated form of iron, where iron is bound to glycine, an amino acid. This form is designed to enhance absorption and reduce gastrointestinal side effects.
Historical & Cultural Context
Iron has been used for centuries to treat anemia and related conditions. The development of chelated forms like Iron Bisglycinate reflects modern advancements in supplement technology.
Health Benefits
- Enhances oxygen transport, boosting energy levels by 30% according to clinical studies. This is crucial for athletes and those with anemia. - Supports cognitive function by improving blood flow to the brain, enhancing memory and focus. - Strengthens the immune system by promoting the production of white blood cells, reducing illness frequency. - Reduces fatigue by optimizing red blood cell production, ensuring efficient oxygen delivery. - Aids in muscle function by supporting myoglobin synthesis, crucial for muscle oxygenation. - Improves mood by facilitating serotonin production, helping alleviate symptoms of depression. - Enhances skin health by promoting collagen synthesis, leading to a more youthful appearance.
How It Works
Iron bisglycinate utilizes the peptide transport system (PepT1) in the small intestine rather than competing with other minerals at the divalent metal transporter 1 (DMT1). The glycine chelation protects iron from precipitation with phytates and tannins, maintaining stability at higher pH levels. Once absorbed, iron is incorporated into hemoglobin via heme synthesis and ferritin for storage.
Scientific Research
Studies suggest that Iron Bisglycinate is more bioavailable and causes fewer gastrointestinal issues compared to other forms of iron. Randomized controlled trials have shown its effectiveness in improving iron status.
Clinical Summary
Multiple randomized controlled trials demonstrate iron bisglycinate's superior bioavailability compared to ferrous sulfate, with 2.3-fold higher absorption rates. A 12-week study of 124 iron-deficient women showed 90% achieved normal ferritin levels with 25mg daily iron bisglycinate versus 65% with ferrous sulfate. Clinical evidence shows 75% fewer gastrointestinal side effects including nausea and constipation. Most studies range from 8-16 weeks with sample sizes of 50-200 participants, providing moderate-quality evidence.
Nutritional Profile
{"minerals": {"iron": {"compound": "Iron Bisglycinate", "concentration": "20 mg per serving", "bioavailability": "High, due to chelation with glycine"}}, "bioactive_compounds": {"glycine": {"concentration": "Varies depending on formulation, typically 100 mg per serving", "role": "Enhances iron absorption and reduces gastrointestinal side effects"}}, "vitamins": {"vitamin_C": {"concentration": "Optional addition in some formulations, typically 60 mg per serving", "role": "Enhances iron absorption"}}}
Preparation & Dosage
Dosage typically ranges from 25 to 100 mg per day. Consult a healthcare provider before use.
Synergy & Pairings
Vitamin C, Folate, Vitamin B12
Safety & Interactions
Iron bisglycinate typically causes fewer digestive side effects than other iron forms, with mild nausea reported in less than 15% of users. It can reduce absorption of levothyroxine, tetracycline antibiotics, and quinolone antibiotics when taken simultaneously. Contraindicated in hemochromatosis, hemosiderosis, and active peptic ulcer disease. Generally considered safe during pregnancy at recommended doses of 27-30mg daily, but medical supervision is advised.