Hewlings · Nutrients 2020 · narrative review · n=?

A Review of Zinc-L-Carnosine and Its Positive Effects on Oral Mucositis, Taste Disorders, and Gastrointestinal Disorders.

Cited 56 times in the scientific literature.

Level 5 - mechanism / opinion, no new human data

Narrative review synthesizing preclinical mechanisms and clinical applications without systematic search or meta-analytic methodology.

PubMed 32121367 · doi:10.3390/nu12030665 · record verified 2026-08-29

What was done

This narrative review summarizes existing research on the biological mechanisms and clinical applications of zinc-L-carnosine (polaprezinc). The authors evaluate its effects on damaged epithelial cells, focusing on mucosal lining restoration, gastric ulcers, gastrointestinal disorders, taste disorders, and radiation- or chemotherapy-induced oral mucositis in cancer patients.

What was found

The abstract reports no quantitative data, sample sizes, or effect estimates. It qualitatively describes zinc-L-carnosine as operating through localized anti-inflammatory and antioxidant mechanisms to protect and restore mucosal and epithelial tissues, supporting its approved use for gastric ulcers in Japan and suggesting utility in oral mucositis.

Why it matters

Oral mucositis is a frequent and debilitating complication of cancer therapy that often disrupts treatment. This paper highlights zinc-L-carnosine as a supportive-care agent for protecting and repairing epithelial integrity across the gastrointestinal tract.

Limits

As a narrative review, it lacks a systematic search protocol, predefined inclusion criteria, risk-of-bias evaluation, and quantitative pooling. The abstract provides no specific patient numbers, numerical outcomes, effect sizes, or detailed safety data.

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