Visceral adipose tissue (VAT)
What a GLP-1 receptor agonist actually does: which receptors it reaches, how it slows gastric emptying, and the satiety pathway it runs through.
Definition
Fat packed deep in the abdomen around the liver, pancreas and intestines, as opposed to the subcutaneous fat under the skin. It is the metabolically dangerous kind. DEXA substudies of STEP-1 and SURMOUNT-1 found GLP-1s strip it preferentially, which helps explain why cardiometabolic risk falls faster on these drugs than on calorie restriction reaching the same weight.
SURMOUNT-1 body-composition endpoints →
GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature. Not one of them is an AI-generated summary.
Other terms under Mechanism
- GLP-1 receptor
- GIP receptor
- Dual agonist
- Gastric emptying
- Food noise
- Triple agonist
- Amylin
- GLP-1 tachyphylaxis
- Non-peptide GLP-1 agonist
- A1C (glycated hemoglobin)
- MASH / MASLD
- TBWL (Total Body Weight Loss)
- C-peptide
- eGFR (estimated glomerular filtration rate)
- AHI (apnea-hypopnea index)
- SNAC (oral semaglutide absorption enhancer)
Where the evidence lives
- SURMOUNT-1 body-composition endpoints
- The full GLP-1 glossary (149 terms, 8 categories)
- Research articles — written from primary sources
- Tools and calculators
- Compare GLP-1 telehealth providers