What percentage of the human body is made of water?

The human body is primarily composed of water, with an average percentage being around 60% for adults. This composition can vary based on factors such as age, sex, and body composition.

In general, infants have a higher percentage of water, often around 75-78%, due to their higher proportion of lean body mass and lower fat mass. As people age, the water content tends to decrease due to an increase in fat mass and a decrease in lean body mass.

Thus, stating that the body is made up of 60% water aligns with the standard physiological understanding of human body composition in adults. This percentage is crucial for various bodily functions, including regulating temperature, transporting nutrients, and removing waste.