Question

In general, at least ___ % of the body weight lost while on a low calorie diet with be from lean body mass (principally muscle)

Answer 1

Maximizing fat loss while preserving lean tissue mass and function is a central goal of modern obesity treatments. A widely cited rule guiding expected loss of lean tissue as fat-free mass (FFM) states that approximately one-fourth of weight loss will be FFM (i.e., ?FFM/?Weight = ~0.25) with the remaining three-fourths fat mass.

when an individual loses weight by dietary restriction alone, approximately 75% of weight is lost as fat mass, and 25% of weight is lost as fat-free mass.