Mechanism

Visceral adipose tissue (VAT)

How GLP-1 receptor agonists work — receptors, gastric emptying, and the satiety pathway.

Definition

Fat stored deep inside the abdomen, surrounding organs like the liver, pancreas, and intestines — distinct from subcutaneous fat (under the skin). VAT is more metabolically active and more strongly linked to cardiometabolic disease than subcutaneous fat. GLP-1 receptor agonists preferentially reduce VAT relative to subcutaneous fat in DEXA substudies of STEP-1 and SURMOUNT-1, which helps explain why weight loss on these drugs reverses cardiometabolic risk faster than calorie restriction alone.

SURMOUNT-1 body-composition endpoints

Definition curated by Weight Loss Rankings — sourced from FDA labels and peer-reviewed PubMed literature, never AI-generated summaries.

Related terms in Mechanism

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