What percentage of adult body weight is made up by skeletal muscle?

Skeletal muscle typically constitutes about 40% of an adult's body weight. This percentage can vary based on factors such as age, sex, physical activity level, and overall body composition. In general, men have a higher percentage of skeletal muscle compared to women due to hormonal differences and body composition. For instance, athletes and those who engage in regular strength training may have an even higher percentage of skeletal muscle. Understanding this percentage is essential for nutrition coaches as it helps in designing appropriate fitness and dietary programs tailored to individual needs. This knowledge is critical for assessing body composition, determining energy expenditure, and informing effective nutrition strategies for clients.