A huge multiplicity of publications is available on this subject but reading them frequently promotes confusion in one's mind rather than clarity.
Most specialists are also representing different currents, and opinions are sometimes even opposite one to the other.
Body fat is considered nowadays as an organ on itself, with different functions, taking a toll on the whole organism, and with the lowest basal metabolic rate (BMR) of all, engaging in a vicious circle when exuberant.
Newly generated fat cells are brown fat. Those have a fast BMR and consume fatty acids.
Every cell in the organism has a limited survival span and needs renewal.
Old fat reserves are mostly white fat, with a slow BMR.
