ZINC CARNOSINE
Zinc Carnosine (polaprezinc) is a chelated compound of zinc and L-carnosine that adheres to gastric and intestinal mucosa, providing sustained release of its components. It promotes mucosal protection and wound healing while exhibiting antioxidant and anti-inflammatory effects.
Zinc carnosine (also known as polaprezinc) is a chelated compound combining zinc and L-carnosine, a dipeptide. It works by providing both zinc supplementation and carnosine's antioxidant, anti-inflammatory properties, with particular affinity for gastrointestinal mucosa where it promotes healing and protects epithelial integrity. Primarily used for gastric ulcers, gut permeability issues, and as a zinc supplement with enhanced bioavailability.
Research
Reported Effects
Gut-Specific Benefits:: Most effective for gastrointestinal applications, with strong research support for healing peptic ulcers, reducing gut permeability, and protecting intestinal lining from NSAID damage. Synergistic Effects:: Works best when combined with other nutrients (vitamin D, magnesium) for immune support, or with bovine colostrum for exercise-induced gut protection. Individual Variation:: Effectiveness varies significantly based on baseline zinc status and specific health conditions, with those having gut issues or zinc deficiency reporting most benefit. Time to Effect:: Research and user reports suggest benefits accumulate over weeks to months rather than immediate effects, particularly for chronic gut conditions
- Most effective for gastrointestinal applications, with strong research support for healing peptic ulcers, reducing gut permeability, and protecting intestinal lining from NSAID damage
- Works best when combined with other nutrients (vitamin D, magnesium) for immune support, or with bovine colostrum for exercise-induced gut protection
- Effectiveness varies significantly based on baseline zinc status and specific health conditions, with those having gut issues or zinc deficiency reporting most benefit
- Research and user reports suggest benefits accumulate over weeks to months rather than immediate effects, particularly for chronic gut conditions
Safety Profile
Safety Profile: Zinc Carnosine
Common Side Effects
- Mild gastrointestinal symptoms: nausea, constipation, and metallic taste
- Headache
- Copper depletion with long-term use (zinc competes with copper for absorption)
- Mild fatigue
Serious Adverse Effects
- Copper deficiency: Most clinically significant long-term risk; manifests as anemia (sideroblastic), neutropenia, and neurological symptoms (myelopathy) resembling B12 deficiency
- Zinc toxicity at high doses: vomiting, diarrhea, and abdominal pain
- Rare allergic reactions
- Immune suppression paradox: while moderate zinc supports immunity, chronic high-dose zinc suppresses immune function
Contraindications
- Known hypersensitivity to zinc or carnosine
- Wilson's disease (altered copper/zinc metabolism)
- Concurrent copper deficiency
- Severe renal impairment (reduced zinc clearance)
Drug Interactions
- Quinolone and tetracycline antibiotics: Zinc chelates these antibiotics, dramatically reducing their absorption; separate by 2+ hours
- Penicillamine: Reduced absorption of both zinc and penicillamine
- Thiazide diuretics: Increase urinary zinc excretion; may require dose adjustment
- Iron supplements: Competitive absorption; take separately
- Copper supplements: Zinc-copper ratio management may be needed with long-term use
Population-Specific Considerations
- GI ulceration and gastritis: Primary indication; approved in Japan as Polaprezinc for gastric ulcer treatment
- H. pylori eradication: Used adjunctively with triple therapy in Japan; may enhance eradication rates and reduce mucosal damage
- Intestinal permeability: Evidence suggests benefit for "leaky gut" and NSAID-induced intestinal damage
- Dosing: Typical dose is 75–150 mg zinc carnosine/day (providing ~16–34 mg elemental zinc)
- Copper monitoring: With use beyond 4 weeks, monitor serum copper and ceruloplasmin; consider copper supplementation (1–2 mg/day)
- Athletes: Increasingly used for exercise-induced GI permeability
Pharmacokinetic Profile
Quick Start
- Typical Dose
- Most commonly 75-150 mg daily (containing 17-34 mg elemental zinc), with research using 150 mg (polaprezinc) showing efficacy for various conditions
Molecular Structure
- Formula
- C9H12N4O3Zn
- Weight
- 289.6 Da
- PubChem CID
- 9817450
- Exact Mass
- 288.0201 Da
- TPSA
- 109 Ų
- H-Bond Donors
- 2
- H-Bond Acceptors
- 6
- Rotatable Bonds
- 5
- Complexity
- 254
Identifiers (SMILES, InChI)
InChI=1S/C9H14N4O3.Zn/c10-2-1-8(14)13-7(9(15)16)3-6-4-11-5-12-6;/h4-5,7H,1-3,10H2,(H3,11,12,13,14,15,16);/q;+2/p-2/t7-;/m0./s1
IGXZLYMCFZHNKW-FJXQXJEOSA-LSafety Profile
Common Side Effects
- Copper Depletion:: Extended high-dose use (>25 mg elemental zinc daily) can cause copper deficiency, leading to anemia, neurological issues, and fatigue if not balanced
- Digestive Changes:: Some users report initial nausea or stomach upset, though this is less common than with other zinc forms due to the carnosine chelation
- Mineral Interactions:: Can interfere with absorption of other minerals if not properly timed; zinc and copper compete for absorption pathways
- Individual Sensitivity:: Small subset of users report increased irritability or mood changes with zinc supplementation, possibly related to copper-zinc balance disruption
References (8)
- [2]Zinc carnosine works with bovine colostrum in truncating heavy exercise-induced increase in gut permeability in healthy volunteers
→ In athletes, zinc carnosine combined with bovine colostrum significantly reduced exercise-induced gut permeability (lactulose:rhamnose ratio decreased by 70%) compared to placebo, demonstrating protective effects against exercise-induced intestinal damage.
- [3]Efficacy of zinc carnosine in the treatment of colorectal cancer and its potential in combination with immunotherapy in vivo
→ Zinc carnosine inhibited proliferation, invasion, and migration of colorectal cancer cells in vitro and demonstrated anti-tumor effects in mouse models, with potential to enhance immunotherapy effectiveness by modulating the tumor immune microenvironment.
- [4]Zinc, Carnosine, and Neurodegenerative Diseases
→ Review discusses the protective effects of zinc-carnosine complex against neurodegenerative diseases including Alzheimer's and vascular dementia, highlighting its antioxidant, metal-chelating, anti-glycation, and neuroprotective properties.
- [5]Zinc L-Carnosine Protects CCD-18co Cells from L-Buthionine Sulfoximine-Induced Oxidative Stress via the Induction of Metallothionein and Superoxide Dismutase 1 Expression
→ Zinc carnosine protected colon fibroblast cells from oxidative stress by inducing metallothionein and superoxide dismutase 1 expression, demonstrating cellular protective mechanisms against oxidative damage.
- [6]Drug repositioning of polaprezinc for bone fracture healing
→ Polaprezinc (zinc carnosine) enhanced osteogenic differentiation of mesenchymal stem cells and accelerated bone fracture healing in mouse models, suggesting potential applications in skeletal tissue engineering and fracture treatment.
- [7]Polaprezinc (Zinc-L-Carnosine Complex) as an Add-on Therapy for Binge Eating Disorder and Bulimia Nervosa, and the Possible Involvement of Zinc Deficiency in These Conditions
→ In a pilot study, polaprezinc (150 mg/day) as add-on therapy significantly reduced binge eating episodes and improved zinc deficiency symptoms in patients with binge eating disorder and bulimia nervosa over 16 weeks.
- [8]A comparison of the cellular actions of polaprezinc (zinc-L-carnosine) and ZnCl2
→ Polaprezinc and zinc chloride showed similar effects on intracellular zinc levels and cellular thiol content, but polaprezinc caused significantly less cell death under oxidative stress conditions, suggesting superior safety profile.
- [1]Zinc carnosine, a health food supplement that stabilises small bowel integrity and stimulates gut repair processes
→ Zinc carnosine demonstrated pro-migratory and proliferative effects on gut epithelial cells in vitro, reduced indomethacin-induced gut damage in animal models, and prevented NSAID-induced increases in gut permeability in healthy volunteers by approximately threefold.