white adipose tissue

White adipose tissue is a type of connective tissue primarily composed of fat cells, known as adipocytes. These cells are specialized for storing large amounts of fat, which is derived from dietary sources or synthesized within the body. White adipose tissue is the most common type and serves several crucial functions: it provides insulation, acts as an energy reserve for times of starvation or high exertion, and forms protective pads around organs.12

When the body needs energy, hormones trigger the breakdown of stored fat (triacylglycerol) within adipocytes, releasing fatty acids and glycerol into the bloodstream. White adipose tissue also produces hormones like adiponectin, leptin, and resistin, which play roles in metabolism and endocrine function. In humans, fat distribution can vary based on sex, with men generally accumulating fat around the waist and women around the hips.1