Certified Sports Nutritionist from the International Society of Sports Nutrition (CISSN) Practice Exam 2026 - Free Sports Nutritionist Practice Questions and Study Guide

Carnosine plays a significant role in protecting against oxidative stress, particularly in muscle and brain tissues. One of its prominent functions is to act as an antioxidant, which helps to suppress lipid peroxidation, a process where free radicals attack lipids, leading to cellular damage. By neutralizing free radicals and preventing the peroxidation of lipids, carnosine helps maintain cellular integrity and function, particularly during periods of high metabolic demand or stress.

This antioxidant action can be especially beneficial for athletes or individuals engaged in intense physical activity, as oxidative stress can increase during such periods. The ability to inhibit lipid peroxidation means that carnosine contributes to reducing inflammation and potential damage from oxidative stress, enhancing recovery and overall health. Thus, its function in suppressing lipid peroxidation underscores its importance as a protective agent against oxidative damage.