The international best-selling guide to how the Hay diet (food combining) can improve health and vitality. With over one million copies sold worldwide, this is the ultimate guide to the health benefits of food combining from two of the most respected authors in the field.This is THE classic guide to the health benefits of the Hay Diet, or food combining, from Doris Grant, a pioneer for the Hay Diet in the UK. The diet works by keeping starch foods separate from protein foods in the daily diet so...