Yesterday was World Obesity Day. But who is to blame for the globe’s current fatness epidemic? I’ll tell you. The culprits are the morally corrupt scientists and politicians who allowed themselves to be manipulated by food suppliers into saying that obesity was due to lack of exercise.

They wrongly advocated a low-fat, high-carbohydrate and high-sugar diet which greatly increased the profits of the food industry.

In fact obesity is caused by eating too many calories – fuelled by just such a high-carbohydrate and high-sugar diet. Fat actually has a useful effect on weight control, contributing to a sensation of fullness, so preventing us eating too much.

By contrast, when carbohydrates and sugar enter the stomach, the food quickly moves on and there is no feeling of having had a full meal; hunger returns and the consumer starts to eat again. Oatmeal and eggs for breakfast is a sensible start to the day as they satisfy hunger and discourage snacking later.

Fat has been wrongly demonised. But a low-fat, high-carb diet is not very appetising, so the food industry has added increasing amounts of sugar to make it more palatable.