Fat isn’t only where we’re used to seeing it. There’s another kind you can’t see or pinch. It sits around the organs in your abdomen — the liver, pancreas and intestines. This is visceral fat, and it’s the kind that matters most for your health.

How it builds up

When we eat more energy than we use, the extra is stored in fat cells. Where that fat ends up is largely shaped by genes, sex and hormones: men and people with insulin resistance are more likely to store it viscerally. What drives it?

1. Eating more than you need over a long time, especially refined carbs, alcohol, soft drinks and ultra-processed food.
2. Sitting a lot and moving little.
3. Ongoing stress and high cortisol (cortisol directly encourages fat storage around the belly).
4. Poor or short sleep.
5. A slower metabolism and falling sex hormones as we age.

Why we need some

A small amount of visceral fat is normal and useful:

1. It’s an energy reserve.
2. It cushions and protects your organs.
3. It takes part in hormone signalling: fat tissue produces hormones (leptin, adiponectin) and inflammatory molecules.

The problem starts when there’s too much of it.

Why too much visceral fat is a concern

Unlike the fat under your skin, visceral fat is very metabolically active. Too much of it:

1. Releases inflammatory messengers (cytokines) that keep low-grade inflammation going.
2. Makes your cells less sensitive to insulin, raising the risk of type 2 diabetes.
3. Surrounds the liver and contributes to fatty liver.
4. Raises “bad” cholesterol and triglycerides, increasing the risk of atherosclerosis.
5. Is linked to higher blood pressure and heart disease risk.
6. Is linked to a higher risk of some cancers.

What helps

1. A modest energy deficit. Gradual weight loss — even 5–10% of body weight — noticeably reduces visceral fat.
2. Strength training. Muscle raises the energy you burn at rest and improves insulin sensitivity.
3. Cardio. Regular aerobic exercise (brisk walking, running, swimming) is especially effective against visceral fat.
4. Less sugar and alcohol. Both directly encourage it to build up.
5. Enough protein and fibre: they keep you fuller and support your metabolism.
6. Good sleep. 7–9 hours helps bring cortisol down.
7. Stress management: meditation, walks, breathing practices, yoga nidra, talking to a psychologist.

Visceral fat isn’t a cosmetic issue. It’s active tissue that affects almost every system in the body, which is why daily habits and food matter so much.

“Stubborn fat”

Your weight is more or less where it should be, but your belly, sides or thighs seem to have a life of their own and don’t respond to diet or training. People often call this “stubborn fat”. It’s not a medical term, but it’s a handy one.

Why it happens:

1. Fat cells have different receptors in different places. Fat cells carry two types of receptors: alpha-2 receptors, which slow fat breakdown, and beta-2 receptors, which switch it on. “Problem” areas often have more alpha-2 receptors, so fat there is released more slowly.
2. Hormones. Cortisol encourages fat storage around the belly (see above). Oestrogen is why women tend to store fat on the hips and bottom, and after menopause storage shifts towards the belly. Insulin resistance encourages fat around the waist.
3. Local blood flow and lymph. In areas with weaker blood supply, fatty acids released from fat cells reach the liver and muscles more slowly to be used.
4. Genetics. Your fat distribution pattern is largely inherited, which is one reason “spot reduction” is so hard.

Your body uses fat from all its stores at once, just in different proportions. You can’t lose fat “only from your belly” with targeted exercises.

What makes stubborn areas worse:

1. Ongoing stress and constantly high cortisol.
2. Not enough sleep (it disrupts leptin and ghrelin, your fullness and hunger hormones).
3. Lots of refined carbs and frequent insulin spikes.
4. Sitting a lot, with sluggish lymph and blood flow.
5. Hormonal changes (pregnancy, menopause, thyroid conditions).
6. Ongoing low-grade inflammation.

How to support your body:

1. Protein at every meal.
2. Fibre and vegetables. They slow glucose absorption, smooth out insulin swings and feed your gut bacteria.
3. Enough good-quality omega-3 fats — needed for hormone production and to help keep inflammation in check.
4. Less sugar and refined food.
5. Water. Staying hydrated helps your lymphatic system and kidneys do their job.
6. Strength training. Muscle improves insulin sensitivity and burns more energy, even at rest.
7. Moderate cardio and more everyday movement.
8. Interval training.
9. Massage (lymphatic drainage) — can temporarily reduce puffiness and fluid build-up.
10. Stress management — breathing practices, meditation and walks in nature lower cortisol, which directly affects belly fat.

A word about the liver. It clears excess oestrogen from the body, and relatively high oestrogen is linked to fat on the hips, bottom and lower belly (especially in women with high oestrogen relative to progesterone).

Foods that support normal liver function:

1. Cruciferous vegetables (broccoli, cauliflower, Brussels sprouts, white and red cabbage, rocket).
2. Sulphur-rich foods (eggs, garlic, onion, cruciferous veg).
3. Foods that support glutathione: avocado, asparagus, spinach.
4. B vitamins: in leafy greens, legumes, eggs, liver, whole grains and nutritional yeast.
5. Fibre: vegetables, legumes, bran, linseed.
6. Fermented foods (sauerkraut, kefir, natural yoghurt, coconut yoghurt, miso).

Body wraps, spot exercises and crash diets don’t work. You can’t trick your body, but you can support it: balanced meals, strength training, good sleep, gradual fat loss overall, and training to shape the areas you care about.

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General information only, not medical advice. If you have a health condition, please talk to your GP.