What percentage of muscle composition is made up of water?

Muscle composition is predominantly made up of water, and the correct percentage is approximately 75%. Water plays a crucial role in muscle function, contributing to muscle contraction and maintaining hydration levels within the muscle cells. This high water content supports nutrient transport and waste removal, which is vital for overall muscle health and performance. While muscle tissue does contain proteins and other substances, the significant percentage of water underlines its foundational role in the structure and function of muscles.

Other options, such as 50%, 60%, and 80%, do not accurately reflect the typical composition of muscle tissue. While all options indicate some level of water content, none align with the well-documented figure of around 75%. Understanding the water content in muscles can help in comprehending hydration requirements and optimizing physical performance.