What percentage of total body weight does water typically account for?

Water typically accounts for about 60-70% of total body weight in adults. This percentage can vary slightly depending on factors such as age, sex, and body composition. In general, lean tissue contains a higher percentage of water, while fat tissue contains much less, which is why individuals with a higher percentage of body fat may have a lower overall water percentage.

In adults, the range of 60-70% reflects the critical role water plays in biological functions. It is a major component of cells and helps to regulate temperature, transport nutrients, and eliminate waste. Understanding this percentage is crucial in fields such as nutrition and diet therapy, as it underscores the importance of hydration and the need for adequate water intake to support bodily functions.