Which term describes the mass of all the water, protein, and minerals in the body excluding fat?

The term that describes the mass of all the water, protein, and minerals in the body, excluding fat, is referred to as lean body mass. This includes essential components such as muscles, organs, and connective tissues that contribute to overall body composition. Understanding lean body mass is important in fitness and health contexts because it provides insight into a person's metabolic rate and overall physical fitness.

Maintaining or increasing lean body mass is often a goal for individuals looking to improve their fitness levels or manage their weight effectively, as it plays a critical role in energy expenditure and overall body function. In contrast, other terms such as fat mass refer specifically to the weight of fat in the body, body fat percentage quantifies the proportion of fat relative to total body weight, and bone density relates to the strength and health of bones, which are distinct from the concept of lean body mass.