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Brown Adipose Tissue (BAT)

Brown adipose tissue is a special type of fat that burns calories to generate heat, playing a role in body weight regulation and metabolism.

Brown fat is a special type of body fat that burns calories to produce heat, unlike regular white fat which stores energy. It is activated by cold temperatures and plays a natural role in regulating body weight and metabolism.

Brown adipose tissue (BAT) expresses uncoupling protein 1 (UCP1), which dissipates the mitochondrial proton gradient to generate heat instead of ATP — a process called non-shivering thermogenesis. BAT activity is inversely correlated with BMI and age, and its metabolic activity can be stimulated by cold exposure, β3-adrenergic agonists, and certain dietary factors. Pharmacological activation and expansion of BAT are emerging therapeutic targets for obesity.

Understanding brown fat helps explain individual differences in calorie burning and points toward future treatments that may harness BAT to support weight loss.

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This library is for general education and does not replace individual assessment by a qualified healthcare professional. Always consult a doctor for medical advice, diagnosis, or treatment.

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