Carnosine: Multipurpose Anti-Aging Nutrient

Carnosine Declines with Age Carnosine (not to be confused with L-carnitine) is found in highest concentrations in long-lived tissues such as skeletal muscle, cardiac muscle and brain.1 Muscle carnosine levels in humans decline 63 percent from age 10 to 70 (Fig. 2).2 This marked reduction in muscle carnosine concentration may be a cause of the age-related decline in muscle mass, strength and function. Stress, infections and trauma also cause carnosine levels to decline, which may help explain the increased mortality in the elderly following stressful events.