Approximately what percentage of your body weight is comprised of muscles?

Muscle mass constitutes a significant portion of body weight, and the average percentage can vary based on factors like sex, age, and fitness levels. For adults, it's generally accepted that muscles make up about 40-50% of total body weight. This percentage tends to be closer to 40% for women and can be around 50% or more for men, particularly in those who are physically active or have greater muscle mass due to exercise.

Choosing the answer indicating that muscles comprise approximately 50% of body weight aligns with this understanding. The range of muscle composition is influenced by individual differences, but 50% serves as a solid middle ground that reflects a reasonable approximation for many adults, particularly those with an average to higher level of muscular development.

Other options may either underestimate or overestimate the contribution of muscles to total body weight. For example, estimates of 30% or 40% might not fully consider particularly active individuals with higher muscle mass, while 60% reflects an unrealistically high percentage for muscle contribution in the general population. Thus, identifying 50% as the approximate percentage acknowledges the common variability among different body types.