At What Age Do You Lose Baby Fat?

Most children lose their baby fat by the age of three, though it varies from child to child. Regular visits with a pediatrician can help determine if a child is losing the fat at a healthy rate.

Also known as "brown fat,' baby fat serves to keep babies warm by burning calories; just a single pound of the body fat contains up to 3,500 calories of potential energy reserves, cite 'The Doctors' health experts.

Baby fat makes up roughly 5 percent of a healthy infant's total mass; pediatricians can differentiate baby fat from obesity by comparing a child's body mass index to other children of the same age group, according to 'Time' magazine.