Hermetica Superfood Encyclopedia
The Short Answer
Iron bisglycinate is a chelated form of iron bound to two glycine amino acids, offering superior bioavailability compared to traditional iron salts. This chelation protects iron from gastric interference and allows for enhanced absorption through amino acid transporters in the intestinal wall.
CategoryVitamin & Mineral
GroupMineral
Evidence LevelStrong
Primary Keywordiron bisglycinate benefits
Synergy Pairings4
Iron Bisglycinate — botanical close-up
Health Benefits
Supports the production of red blood cells by enhancing hemoglobin synthesis
This support can prevent anemia and improve oxygen transport in the body. - Enhances energy levels by facilitating oxygen delivery to muscles and tissues. Better oxygenation can lead to increased stamina and reduced fatigue. - Supports cognitive function by improving oxygen supply to the brain. Enhanced brain oxygenation can lead to better focus and mental clarity. - Boosts immune function by supporting the proliferation of immune cells. A stronger immune system can better protect against infections. - Reduces oxidative stress by participating in antioxidant enzyme production. This reduction can lower the risk of chronic diseases. - Supports healthy pregnancy by preventing iron deficiency anemia, crucial for fetal development. Adequate iron levels can lead to healthier pregnancy outcomes. - Enhances athletic performance by improving endurance and recovery. Better performance can lead to more effective workouts and fitness gains.
Origin & History
Natural habitat
Iron bisglycinate is a chelated form of iron, where iron is bound to the amino acid glycine. This form is created through a process that enhances the bioavailability and absorption of iron, making it a preferred choice in dietary supplements.
“Iron has been used since ancient times to treat anemia and fatigue. The chelated form, bisglycinate, was developed to improve absorption and reduce side effects.”Traditional Medicine
Scientific Research
Randomized controlled trials have shown that iron bisglycinate is effective in increasing hemoglobin levels and improving iron status with fewer side effects compared to other forms of iron.
Preparation & Dosage
Traditional preparation
Typical dosage ranges from 15 mg to 30 mg of elemental iron per day. Consult a healthcare provider before use.
Nutritional Profile
- Provides elemental iron, crucial for oxygen transport in the blood. - Highly bioavailable form, ensuring effective absorption. - Contains glycine, which aids in reducing gastrointestinal side effects.
How It Works
Mechanism of Action
Iron bisglycinate bypasses the divalent metal transporter (DMT1) pathway used by inorganic iron forms, instead utilizing peptide transporters like PEPT1 for absorption. The glycine chelation protects iron from precipitation by phytates, tannins, and calcium in the digestive tract. Once absorbed, iron is incorporated into hemoglobin synthesis and cellular energy production through cytochrome oxidase enzymes.
Clinical Evidence
Comparative studies show iron bisglycinate demonstrates 2.3-4.6 times higher bioavailability than iron sulfate in healthy adults. Clinical trials in pregnant women (n=90-120) found bisglycinate forms increased serum ferritin levels more effectively with 50% fewer gastrointestinal side effects. Studies in iron-deficient athletes showed significant improvements in hemoglobin levels within 8-12 weeks. Evidence is strongest for bioavailability advantages, with emerging data on tolerance benefits.
Safety & Interactions
Iron bisglycinate generally causes fewer gastrointestinal side effects than iron sulfate, including reduced nausea, constipation, and stomach upset. It may still interact with calcium, zinc, and tetracycline antibiotics when taken simultaneously. Contraindicated in hemochromatosis and hemosiderosis conditions. Pregnancy safety data is limited, though preliminary studies suggest good tolerance in second and third trimesters.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
Ferrous bisglycinateIron glycinate chelateChelated ironFerrous glycinateIron amino acid chelateBisglycinated ironIron(II) bisglycinate
Frequently Asked Questions
How much more absorbable is iron bisglycinate than iron sulfate?
Clinical studies demonstrate iron bisglycinate is 2.3 to 4.6 times more bioavailable than iron sulfate. This increased absorption is due to the glycine chelation protecting iron from dietary inhibitors and utilizing different intestinal transport mechanisms.
What is the recommended dosage of iron bisglycinate for anemia?
Typical dosing ranges from 18-25mg elemental iron daily for mild deficiency, up to 50-100mg daily for iron deficiency anemia. The chelated form requires lower doses than iron sulfate due to superior absorption, reducing the risk of gastrointestinal side effects.
Can iron bisglycinate be taken on an empty stomach?
Yes, iron bisglycinate can be taken on an empty stomach with better tolerance than iron sulfate. The glycine chelation protects against gastric irritation, though some individuals may still prefer taking it with food to minimize any potential stomach upset.
Does iron bisglycinate interact with vitamin C absorption?
Iron bisglycinate does not require vitamin C for absorption enhancement like traditional iron salts do. However, vitamin C can still provide additional absorption benefits and does not interfere with the chelated form's unique transport mechanisms.
How long does it take to see results from iron bisglycinate supplementation?
Serum iron levels typically improve within 2-4 weeks, while hemoglobin and ferritin levels show significant increases after 8-12 weeks of consistent supplementation. Energy levels and fatigue reduction may be noticed within 4-6 weeks as iron stores replenish.
Is iron bisglycinate safe during pregnancy and breastfeeding?
Iron bisglycinate is generally considered safe during pregnancy, as iron supplementation is commonly recommended to prevent anemia in pregnant women. However, dosage requirements increase during pregnancy, and you should consult your healthcare provider to determine the appropriate amount for your specific needs. It is also considered safe during breastfeeding, though iron supplementation primarily benefits the mother's health rather than directly increasing iron content in breast milk.
Does iron bisglycinate interact with common medications like antibiotics or thyroid drugs?
Iron bisglycinate can interact with certain medications, particularly tetracycline and fluoroquinolone antibiotics, as well as thyroid medications like levothyroxine, by reducing their absorption if taken simultaneously. To minimize interactions, these medications should be taken at least 2–4 hours apart from iron supplementation. If you are taking prescription medications, inform your healthcare provider before starting iron bisglycinate to ensure safe concurrent use.
What is the difference between iron bisglycinate and other chelated iron forms?
Iron bisglycinate is a chelated form where iron is bound to the amino acid glycine, which enhances absorption and reduces gastrointestinal side effects compared to non-chelated forms like iron sulfate. Other chelated forms, such as iron glycinate or iron citrate, offer similar benefits, but iron bisglycinate is particularly noted for its superior bioavailability and gentle effect on the digestive system. The chelation process protects the iron from binding with inhibitors in food, allowing for more consistent and reliable absorption.
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