Research
Hormonal
Visceral adipose tissue promotes insulin resistance through the Portal Theory, where NEFAs and cytokines drain directly to the liver, whereas subcutaneous fat drains systemically and is diluted.
Targeting visceral fat loss is critical for metabolic health because this fat sends harmful signals directly to the liver. Exercises that reduce visceral fat (like aerobic exercise) may have outsized benefits for insulin sensitivity compared to exercises that only affect subcutaneous fat.
GoodSupportsHIGH confidence
visceral depots (omental and mesenteric WAT) are drained by the hepatic portal vein into the liver, whereas subcutaneous depots are drained systemically by inferior or superior venae cava. Whereas NEFAs and pro-inflammatory cytokines released by those subcutaneous depots are diluted in the circulation, released by portal drained visceral depots directly flow to the liver.
Why this rating
Supported by fat transplantation studies in mice showing hepatic insulin resistance with visceral but not IL-6-deficient fat.
Source
Heterogeneity of white adipose tissue: molecular basis and clinical implications
Kelvin H. M. Kwok et al. · Experimental & Molecular Medicine · 2016
DOI 10.1038/emm.2016.5
narrative_reviewCited 236×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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