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Vue de dos d'une personne pincant un pli de graisse abdominale
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Bilans de santé

Visceral fat: the real hidden danger

IRIS Prévention
28 October 2026
It is not the fat that we see that is the most dangerous, but that which is hidden around the organs: visceral fat.

We often associate excess fat with what is visible under the skin. However, the fat of greatest concern for health is invisible: visceral fat, lodged deep around the abdominal organs. Understanding its role explains why waist size matters as much as weight.

1. Two very different fats

The body stores fat in two places: under the skin (subcutaneous fat) and around the organs (visceral fat). The first is above all a reservoir of energy. The second is metabolically active and releases substances that disrupt the body.

SubcutaneousVisceral
LocationUnder the skinAround organs
VisibilityVisible, palpableInvisible
Health impactModerateHigh

2. Why it is dangerous

Visceral fat promotes chronic inflammation, insulin resistance and lipid imbalances. It is strongly linked to the risk of type 2 diabetes, hypertension and cardiovascular disease. Its excess can concern people who do not seem overweight.

3. The paradox of “normal” weight

You can have a normal BMI and excess visceral fat, especially if you are sedentary and have low muscle mass. This is why waist circumference is a valuable indicator, capable of identifying this risk that the scale does not show.

4. How to reduce it

The good news: visceral fat responds well to lifestyle changes. Physical activity, in particular, melts it effectively, as does a balanced diet, good sleep and reducing stress.

    • Move regularly (endurance and strengthening)
    • Limit fast sugars and ultra-processed products
    • Preserve your sleep and manage your stress
    • Reduce alcohol

Acting on visceral fat means acting directly on cardiovascular and metabolic risk. Every effort counts.

💡 tips to remember

    • Visceral fat surrounds the organs: invisible, it is much more dangerous than subcutaneous fat.
    • It promotes inflammation, insulin resistance and lipid imbalances, linked to diabetes and cardiovascular disease.
    • You can have a normal BMI and a excess visceral fat: the waistline identifies this risk that the scale does not show.
    • Visceral fat responds well to physical activity, which melts it effectively.
    • Balanced diet, good sleep, stress management and reduction of alcohol complete the action: every effort counts.