A system of eating or dieting based on William Hay's principle that certain foods, especially carbohydrates and proteins, should not be eaten together, as they are more easily digested separately.
Origin
1950s.
Definition of food combining in US English:
food combining
noun
A system of eating or dieting based on William Hay's principle that certain foods, especially carbohydrates and proteins, should not be eaten together, as they are more easily digested separately.