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Weight Management·August 23, 2026·8 min read

Visceral Adipose Tissue vs. Subcutaneous Fat: The Secretory Phenotype of Ectopic Lipids

How deep intra-abdominal adipose depots release pro-inflammatory cytokines (IL-6, TNF-α) directly into portal circulation, driving hepatic insulin resistance.

C
Cardiometabolic Medicine GroupSenior Clinical Investigator
Visceral Adipose Tissue vs. Subcutaneous Fat: The Secretory Phenotype of Ectopic Lipids
Key Takeaways
  • •Visceral fat is hyper-lipolytic and directly floods the portal vein with free fatty acids, impairing hepatic insulin clearance.
  • •Waist-to-height ratio (WHtR < 0.5) is a vastly superior clinical prognosticator of cardiometabolic mortality than standard Body Mass Index (BMI).
  • •Moderate aerobic exercise combined with mild caloric equilibrium preferentially mobilizes visceral lipid stores prior to subcutaneous depots.

How deep intra-abdominal adipose depots release pro-inflammatory cytokines (IL-6, TNF-α) directly into portal circulation, driving hepatic insulin resistance.

Closing Thought

Maintaining a waist-to-height ratio below 0.5 is far more predictive of cardiometabolic health than BMI; moderate aerobic work preferentially mobilizes visceral fat over subcutaneous stores.