Home › Biomarker
BiomarkerVisceral fat
Also: belly fat
Last scientific update: jun 2026
Visceral fat is the fat around the organs in your belly. It is more active and harmful than subcutaneous fat and is linked to diabetes and cardiovascular disease.
Visceral fat at a glance
RiskHigher than subcutaneous fatStrong
TackleableYes, with lifestyleStrong
MeasureWaist size
Linked toDiabetes and heart risk
Visceral fat is more harmful than weight alone suggests, and it responds well to exercise and diet.
28 studies4 answersupdated jun 2026
Evidence per claim
Belly fat is more harmful than subcutaneous fat
View evidence →Overweight speeds up aging
View evidence →Weight loss improves blood pressure and cholesterol
View evidence →Repeated weight cycling is not ideal
View evidence →Practical use
For whom
Anyone with a growing waist, even at a normal weight.
Not for whom
Not fixable with isolated ab exercises; it is about overall fat loss.
Usual dose
Regular activity, fewer fast sugars and alcohol, and overall weight loss.
Key caveats
Waist size says more than the number on the scale alone.
What we know, and don't
Known
More harmful than subcutaneous fat
A better risk measure than weight alone
Responds well to exercise and diet
Not yet
The exact threshold per person
Which diet works fastest
How much weight cycling truly harms
Common misconceptions
"Ab exercises burn belly fat."
False. Spot reduction does not exist; it is about total fat loss.Strong evidence
"A normal weight means no visceral fat."
Incomplete. Lean people can carry a lot of organ fat too.Moderate evidence
How Visceral fat connects
Effects
Conditions
Related