# Iron Bisglycinate (Ferrochel)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/iron-bisglycinate-ferrochel
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-18
**Evidence Score:** 8 / 10
**Category:** Mineral
**Also Known As:** Ferrous bisglycinate chelate, Chelated iron, Iron glycinate, Ferrochel, Bisglycino iron, Iron amino acid chelate, Ferrous glycinate

## Overview

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.

## 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](/ingredients/condition/cognitive) by improving blood flow to the brain, enhancing memory and focus. - Strengthens the immune system by promoting the production of [white blood cell](/ingredients/condition/immune-support)s, 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](/ingredients/condition/mood), helping alleviate symptoms of depression. - Enhances skin health by promoting [collagen synthesis](/ingredients/condition/skin-health), leading to a more youthful appearance.

## Mechanism of Action

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.

## 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"}}}

## Dosage & Preparation

Dosage typically ranges from 25 to 100 mg per day. Consult a healthcare provider before use.

## Safety & Drug 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.

## 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.

## 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.

## Synergistic Combinations

Vitamin C, Folate, Vitamin B12

## Frequently Asked Questions

### What is the recommended daily dose of iron bisglycinate for iron deficiency?

Iron bisglycinate (Ferrochel) is typically dosed between 25 and 100 mg of elemental iron per day, depending on the severity of deficiency and individual needs. Because of its superior bioavailability through the PepT1 peptide transport pathway, effective results are often achieved at lower doses compared to conventional iron salts, reducing the risk of side effects. Always consult a healthcare provider to determine the appropriate dose based on blood work, as excessive iron intake carries health risks.

### Can I take iron bisglycinate with coffee or tea?

One of the key advantages of iron bisglycinate is its resistance to inhibitors like tannins found in coffee and tea. The glycine chelation protects the iron molecule from binding to these compounds, which would otherwise block absorption through the DMT1 transporter. While timing your supplement away from beverages high in tannins is still advisable for optimal results, iron bisglycinate maintains greater stability and absorption than non-chelated forms even when consumed alongside dietary inhibitors.

### Does iron bisglycinate help with fatigue and low energy?

Yes. Iron bisglycinate supports energy levels by optimizing red blood cell production and hemoglobin synthesis, which are essential for efficient oxygen delivery to tissues. Iron deficiency is a leading cause of fatigue, particularly in women and athletes. Clinical studies have reported meaningful improvements in energy levels following iron bisglycinate supplementation. Its enhanced bioavailability means iron stores, including ferritin and hemoglobin, are replenished more efficiently, which can translate into noticeable reductions in tiredness and improved stamina.

### Can athletes benefit from taking iron bisglycinate?

Athletes, particularly endurance athletes and female athletes, are at elevated risk of iron deficiency due to increased losses through sweat, foot-strike hemolysis, and higher metabolic demands. Iron bisglycinate supports myoglobin synthesis in muscles, which is critical for muscle oxygenation, and enhances oxygen transport via hemoglobin. Its high bioavailability and minimal gastrointestinal side effects make it well-suited for daily use in active individuals looking to maintain or restore optimal iron status without disrupting training.

### Can I take iron bisglycinate with calcium or magnesium supplements?

Unlike ferrous sulfate, iron bisglycinate does not rely on the DMT1 transporter, which is the primary site of competitive inhibition between iron and other divalent minerals like calcium, magnesium, and zinc. This means iron bisglycinate is less likely to have its absorption impaired when taken alongside these minerals. However, spacing supplements by at least one to two hours is still a conservative approach to maximise absorption of each nutrient.

### Does iron bisglycinate support brain function and focus?

Iron plays a critical role in neurological function, including the synthesis of neurotransmitters such as dopamine and serotonin, as well as supporting adequate cerebral blood flow. Iron deficiency has been linked to impaired memory, reduced concentration, and mood disturbances. By improving iron status efficiently, iron bisglycinate may help restore cognitive performance in deficient individuals. Its ability to support serotonin production may also contribute to mood stabilisation, though these benefits are most evident in those with confirmed deficiency.

### Is iron bisglycinate suitable for vegetarians and vegans?

Iron bisglycinate is particularly beneficial for vegetarians and vegans, who are at higher risk of iron deficiency because plant-based diets contain non-heme iron, which is less bioavailable and more susceptible to inhibition by phytates and tannins found in grains, legumes, and vegetables. The glycine chelation in iron bisglycinate protects the mineral from these dietary inhibitors, making it an effective supplementation strategy for those avoiding animal products. Always verify with the manufacturer that the capsule or tablet form is also vegan-friendly.

### Can children take iron bisglycinate, and is it safe for them?

Iron bisglycinate is often considered a preferred iron form for children due to its gentler gastrointestinal profile compared to ferrous sulfate, which commonly causes nausea and constipation at paediatric doses. Its high bioavailability means effective iron repletion can be achieved at lower elemental iron doses, reducing the risk of overload. However, iron supplementation in children should always be guided by a paediatrician based on confirmed deficiency via blood tests, as excess iron in children can be harmful.

### Is iron bisglycinate better than ferrous sulfate?

Iron bisglycinate is generally considered superior to ferrous sulfate for most users. Its chelated form uses the PepT1 peptide transport pathway rather than competing at the DMT1 transporter, resulting in significantly higher bioavailability. Clinical studies show it achieves comparable or better improvements in iron status at lower doses while producing far fewer gastrointestinal side effects such as constipation, nausea, and stomach cramps. This makes iron bisglycinate a preferred choice for individuals who have struggled to tolerate ferrous sulfate.

### Does iron bisglycinate cause constipation or stomach upset?

Iron bisglycinate is specifically recognised for its low gastrointestinal side effect profile compared to conventional iron salts. Because it bypasses the DMT1 transporter and is protected by glycine chelation from reacting with gut contents, very little free iron remains in the intestinal lumen to cause irritation. Randomised controlled trials confirm significantly lower rates of constipation, nausea, and bloating versus ferrous sulfate, making it suitable for individuals with sensitive digestive systems, including pregnant women and children.

### Can pregnant women take iron bisglycinate safely?

Iron bisglycinate is widely used during pregnancy to meet increased iron demands and support fetal development. Its high bioavailability means effective iron repletion is achievable at lower doses, and its minimal gastrointestinal side effects are particularly valued during pregnancy when nausea is already common. Clinical trials in pregnant populations have demonstrated improved haemoglobin and ferritin levels without significant adverse effects. However, pregnant women should always consult a healthcare provider to confirm appropriate dosing and rule out contraindications.

### How long does it take for iron bisglycinate to raise ferritin levels?

Ferritin levels typically begin to improve within four to eight weeks of consistent iron bisglycinate supplementation, though full repletion of depleted iron stores may take three to six months depending on the severity of deficiency. Haemoglobin levels often show measurable improvement within four weeks. Individual response varies based on baseline iron status, dietary iron intake, absorption capacity, and the presence of underlying conditions affecting iron metabolism. Regular blood testing every eight to twelve weeks is recommended to monitor progress.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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