22/04/2026
🍔🧠 Why does fast food never feel truly filling
It is not just about calories. It is about how food is engineered. Fast food is designed with specific textures, flavours and nutrient ratios that maximise reward but minimise satiety.
Soft textures, low fibre and rapid digestion mean your body processes it quickly. At the same time, the combination of fat, sugar and salt keeps your brain engaged, encouraging you to keep eating.
The result is food that satisfies in the moment but does not signal fullness as effectively as whole foods.
This is not accidental. It is food design.