Health & Longevity Series · Medical education

Fat storage and visceral fat

Insulin sensitivity, fat storage and visceral adiposity

3 min read

01Overview

Fat tissue, insulin sensitivity and visceral adiposity

Key takeaway for patientsWhere fat is stored matters as much as how much. Deep visceral fat and fat in the liver are the stores physicians watch most closely.

Adipose tissue is an active organ. Hormones released by the gut after meals act on fat cells as well as on the pancreas: they affect the tissue’s sensitivity to insulin and help to clear lipids from the blood.

Fat stored under the skin acts as a buffer. When that buffer is overwhelmed, fat is laid down in and around the organs, as visceral and ectopic fat, which is linked with metabolic inflammation.

02Key steps

Four parts of the picture

Insulin response
Gut hormones and the beta cells of the pancreas work together to match insulin to a meal.
Subcutaneous lipid buffering
Healthy fat tissue under the skin stores lipids and keeps them out of other organs.
Visceral fat
Deep abdominal fat is the store most closely linked with metabolic disease.
Central satiety
The hypothalamus sets total energy intake.
03Factors in decline

Risk factors and metabolic dysregulation

Factors that contribute to ectopic fat deposition include:

Fatty liver and visceral fat overload
Promote chronic, low-grade metabolic inflammation.
A blunted hormone response to nutrients
Impairs insulin release after meals and glucose uptake in peripheral tissue.
Pro-inflammatory dietary patterns
A disrupted intestinal barrier lets bacterial toxins into the circulation.
Chronic stress response
Raised cortisol promotes visceral fat accumulation and insulin resistance.
04Clinical management

Physician guidance

Medical supervision brings together baseline cardiometabolic profiling and the tracking of body composition.

Comprehensive diagnostic panel
Evaluates fasting insulin, HOMA-IR, estimates of visceral fat, liver enzymes and lipids.
A plan set by your physician
What follows from the results is a clinical decision, made with you.
Body composition monitoring
DXA or bioimpedance analysis shows whether change is coming from visceral fat while skeletal muscle is maintained.
05Research focus

Research focus in adipose biology

Core focus area Biological target Clinical relevance
Insulin sensitivity Hormone receptors on beta cells and fat cellsInsulin sensitivity and glycemic control
Visceral lipolysis Abdominal adipocyte signalingDeep visceral fat accumulation
Metabolic flexibility Hepatic lipid oxidationThe triglyceride content of the liver
Appetite control Hypothalamic arcuate nucleusHunger and satiety after meals
06Questions

Frequently asked questions

Why does it matter where fat is stored?
Fat under the skin acts as a buffer. Fat around the organs and in the liver is the kind linked with metabolic inflammation.
Why is visceral fat particularly important for long-term health?
Visceral fat secretes pro-inflammatory cytokines that are associated with metabolic syndrome and cardiometabolic risk.
How do physicians track body composition?
With DXA scans and metabolic biomarker panels, which show fat and muscle separately.
07References

Academic references and literature

  1. Rosen ED, Spiegelman BM (2014). What we talk about when we talk about fat. Cell, 156(1-2), 20-44. PMID 24439368.

This guide belongs to the Weight Management program