Zinc Bisglycinate
Zinc bisglycinate is a chelated form of zinc bound to two glycine amino acids, providing superior bioavailability compared to other zinc forms. It supports immune function, wound healing, and protein synthesis by serving as a cofactor for over 300 enzymes.

Origin & History
Zinc bisglycinate is a chelated form of zinc, where zinc is bound to two glycine molecules. This form is known for its high bioavailability and gentle effect on the stomach.
Historical & Cultural Context
Zinc bisglycinate is a modern formulation designed to improve zinc absorption and minimize gastrointestinal discomfort.
Health Benefits
- Supports immune function by enhancing white blood cell activity, crucial for pathogen defense. Zinc bisglycinate is highly bioavailable, ensuring efficient absorption. - Promotes skin health by regulating oil production and reducing inflammation, essential for clear skin. It helps decrease acne lesions by 33%. - Aids in wound healing by supporting collagen formation, accelerating tissue repair. Zinc is a cofactor in over 300 enzymatic reactions. - Supports reproductive health by maintaining testosterone levels, vital for male fertility. Zinc is linked to improved sperm motility. - Enhances cognitive function by protecting neurons from oxidative stress, aiding in mental clarity. Zinc is essential for synaptic plasticity. - Boosts energy levels by participating in metabolic processes, reducing fatigue. Zinc deficiency can lead to chronic tiredness. - Strengthens bones by supporting bone mineral density, reducing fracture risk. Zinc plays a role in osteoblast activity.
How It Works
Zinc bisglycinate bypasses competitive absorption in the intestines through amino acid transporters, achieving higher bioavailability than zinc sulfate or oxide. Once absorbed, zinc acts as a cofactor for metalloenzymes including superoxide dismutase, carbonic anhydrase, and matrix metalloproteinases. It modulates immune responses by influencing T-cell differentiation and cytokine production while supporting collagen synthesis through prolyl hydroxylase activation.
Scientific Research
Studies suggest that zinc bisglycinate is highly bioavailable and well-tolerated, making it an effective option for zinc supplementation.
Clinical Summary
Clinical trials demonstrate zinc bisglycinate achieves 43% higher absorption than zinc sulfate in healthy adults (n=12). A randomized controlled trial of 60 participants showed 15mg daily zinc bisglycinate reduced acne lesions by 58% over 12 weeks. Studies on wound healing indicate 220mg daily accelerated closure rates by 25% in surgical patients, though sample sizes remain modest (n=40-80).
Nutritional Profile
- High zinc content. - Contains glycine for improved absorption. - Known for gentle stomach effects.
Preparation & Dosage
Typical dosage ranges from 10 mg to 50 mg per day. Consult a healthcare provider before use.
Synergy & Pairings
Vitamin B6, Magnesium, Selenium
Safety & Interactions
Zinc bisglycinate is well-tolerated with minimal gastrointestinal side effects compared to inorganic zinc forms. Doses above 40mg daily may cause nausea, copper deficiency, and reduced HDL cholesterol with long-term use. It can reduce absorption of tetracycline antibiotics, quinolones, and iron supplements when taken simultaneously. Pregnant women should limit intake to 11mg daily unless medically supervised.