The fat that actually shortens lives isn’t the kind you can pinch.
When most people picture body fat, they think of the layer they can pinch — the cushion just under the skin on the belly, hips, or thighs. That’s called subcutaneous fat. It’s mostly cosmetic. It’s not particularly dangerous unless there’s a great deal of it.
The fat that actually shortens lives is something different. It’s called visceral fat, and it sits deep inside your abdominal cavity, wrapped around your liver, your pancreas, your intestines. You can’t pinch it. You can sometimes see it as a firm round belly — the classic “apple shape” — but it can also hide inside people who look reasonably lean.
“Thin on the outside, fat on the inside” is a real phenomenon, and it’s particularly common in older adults whose subcutaneous fat has thinned with age. A person can have very low body fat percentage and still carry enough visceral fat to be at high metabolic risk.
Why is visceral fat so harmful? Because it isn’t passive storage. It’s metabolically active in destructive ways. It pumps inflammatory cytokines into your bloodstream around the clock. It drives insulin resistance, which is the root dysfunction behind type 2 diabetes, fatty liver disease, many cancers, and most cardiovascular disease.
Dr. Peter Attia uses a bathtub metaphor in his book Outlive that I find clarifying: your subcutaneous fat is the bathtub. Different people have different size tubs — some have a jacuzzi, some have a five-gallon bucket, all set by genetics. When you eat more than you burn, water flows into the tub. When you burn more than you eat, water drains out. Trouble starts when the tub overflows. The overflow doesn’t go away. It floods the floor — wrapping around your organs as visceral fat, and seeping into your muscles too. That’s when the damage starts.
The good news: visceral fat responds extremely well to the right interventions. The combination of resistance training, adequate protein, sleep, and a modest caloric deficit if needed will move it faster than almost any drug. The InBody gives you a visceral fat reading; that’s the single most important number to watch over the course of this campaign.
Next week: I will discuss the fat hiding inside your muscle, why most fitness articles never mention it, and why it matters. Also a protein guide to help you figure out your protein intake.
P.S. Start your day with some protein, skip those sneaky snacks, and load up on veggies for dinner. Try to have your last meal early so you wake up ready to fuel up! Keep moving every day, mix in some weights or resistance training 2-3 times a week, and get your heart pumping with cardio 2-3 times a week. Don’t forget to focus on getting quality sleep! If you nail this, give yourself a gold star; if you almost do, a silver star is yours. Let’s aim for no empty stars during this 6-week Shape Up 4 Summer!
