The British diet had been forced to move away from fat-rich foods, which made up thirty-eight per cent of the average calorie intake pre-war,24 to a carbohydrate-rich diet of wholemeal bread and potatoes. The shift not only flattened the variety and taste of the typical Briton’s diet, it also had negative practical consequences. For a manual worker to obtain the 4,000 calories they needed for a day’s work from carbohydrates

