No Insulin, Nobody Gets Fat. It Really Is That Simple

Professor Ben Bikman, one of the world's leading insulin researchers, told me something I have not been able to stop thinking about.

In his laboratory, his students grow fat cells in petri dishes. These cells are sitting in a little sea of calories, surrounded by glucose and fats, everything a fat cell could possibly need to grow.

And yet they stay small. They just sit there, doing nothing.

The moment his team adds insulin to that petri dish, within four hours the cells are visibly fatter. Four hours later, fatter still. The calories were always there. The fat cells were always there. But without insulin, nothing happened.

Ben put it even more forcefully. You could take a person, give them every other hormone in the human body, feed them tens of thousands of calories a day, and if you simply removed insulin, it would be completely impossible for that person to get fat. Not difficult. Impossible.

He was describing what happens to people with Type 1 diabetes. Without insulin, they cannot store fat, no matter how much they eat. Before insulin was discovered as a treatment, unstoppable weight loss was one of the telltale signs. When they start insulin therapy, they gain fat rapidly. Same person, same diet. The only difference is insulin.

This is not a theory. This is observable, repeatable science. And it tells us something the calorie-counting industry does not want you to hear: you cannot get fat without insulin telling your fat cells to grow. Control your insulin, and you control your fat.

Your action today: Stop counting calories and start thinking about insulin. Which of your meals trigger the biggest insulin response? Swap one high-carb meal for a fibre-first, protein-rich alternative.