Zinc Carnosine

Supplements · Digestive Health · Supplement, Typed Supps

A mineral-amino-acid combo that sticks to and helps repair the stomach lining — one of the better-evidenced “gut health” supplements, but for specific issues, not general wellness.

Stage by stage

Intake (Tablet): Taken orally, typically 75mg twice daily before meals.
Stomach lining (Local binding): Adheres preferentially to damaged or inflamed gastric mucosa.
Partial absorption (Systemic zinc): A portion of the zinc is absorbed into the bloodstream like dietary zinc.
Gastric mucosa (Repair & protection): Supports mucosal repair and protection, the basis for its use in ulcers and gastritis.

What the evidence supports

Supporting healing of gastric ulcers as an adjunct to standard care — moderate evidence. Randomized controlled trials, including the drug's original approval studies in Japan, found zinc carnosine improved ulcer healing rates versus placebo over about 8 weeks — a genuinely solid, if geographically concentrated, evidence base.
Improving gastritis symptoms and gut mucosal protection — moderate evidence. Multiple RCTs and a comprehensive 2020 review found consistent benefit for gastric mucosal repair, taste disorders, and GI symptom improvement, with 75mg twice daily as effective as higher doses on most measures.
Evidence on Long-term high-dose safety, specifically copper deficiency risk — moderate evidence. The commonly studied dose (75mg twice daily) provides roughly 32–34mg of elemental zinc daily, which is under the established 40mg/day adult UL for zinc but leaves little room for zinc from other sources — and any zinc supplementation long-term raises real, well-documented copper deficiency risk.

Typical dose

75mg twice daily (providing roughly 32–34mg elemental zinc/day) is the most-studied regimen; some trials found 37.5mg twice daily equally effective.

Upper limit: No UL specific to zinc carnosine, but it counts toward the established adult zinc UL of 40mg/day (NIH Office of Dietary Supplements).

Timing

Typically taken before meals, twice daily, following the studied 75mg twice-daily regimen.

Time to effect

Weeks: Symptom improvement has been reported within 2 weeks; ulcer healing is typically assessed around 8 weeks.

Common myth

“Zinc carnosine is just a regular zinc supplement for immune support.” In reality: It’s a specific chelated complex studied mainly for gastric ulcers, gastritis, and mucosal repair — and its research base is concentrated there, not on general immune support, even though it does contribute to overall zinc intake.