Food combining diets were first introduced by Dr William Hay in the 1930s. He believed that everything we eat is either acid- or alkaline-forming, and that the intake of acid-forming foods (e.g. meat and cereals) should be reduced and alkaline-forming ones (fruits and vegetables) increased. He also believed that it was best to eat only one type of food at a meal, otherwise the body could become overwhelmed with toxins, which could lead to acidosis and fat formation. You should never, for example, eat carbohydrate (e.g. potatoes) and protein (e.g. meat) at the same meal.
Since the 1930s, other food combining diets have been devised, but they all share this idea that food should be eaten in specified combinations only. They promote the idea that certain combinations are incompatible, harmful, and ‘putrefy’ the body, while other combinations are conducive to good health and weight loss. Many accounts which support these diets neglect to point out that all foods (including potato and meat) contain a combination of protein and carbohydrate. There is no scientific evidence to support the use of particular combinations of food, except that a diet should be balanced and contain adequate amounts of all the nutrients.
Subjects: Medicine and Health.