When you walk into a supermarket, what do you see? Walls of highly calorific, intensely processed food, tweaked by chemicals for maximum ‘mouth feel’ and ‘repeat appeal’ (addictiveness). This is what most people in Britain actually eat. Pure science on a plate. The food, in short, that is making the planet fat.

And next to this? Row upon row of low-fat, light, lean, diet, zero, low-carb, low-cal, sugar-free, ‘healthy’ options, marketed to the very people made fat by the previous aisle and now desperate to lose weight. We think of obesity and dieting as polar opposites, but in fact, there is a deep, symbiotic relationship between the two.

In the UK, 60% of us are overweight, yet the ‘fat’ (and I include myself in this category, with a BMI of 27, slap-bang average for the overweight British male) are not lazy and complacent about our condition, but ashamed and desperate to do something about it. Many of those classed as ‘overweight’ are on a near-perpetual diet, and the same even goes for half of the British population, many of whom don’t even need to lose an ounce.

When obesity as a global health issue first came on the radar, the food industry sat […]