Visceral fat or abdominal fat also known as organ fat or intra-abdominal fat, is located inside the abdominal cavity, packed in between organs (stomach, liver, intestines, kidneys, etc.). Visceral fat is different than subcutaneous fat underneath the skin, and intramuscular fat interspersed in skeletal muscles. Fat in the lower body, as in thighs and buttocks, is subcutaneous, whereas fat in the abdomen is mostly visceral. Visceral fat is composed of several adipose depots including mesenteric, epididymal white adipose tissue (EWAT) and perirenal depots.