In its most basic form, the Zone Diet is a nutrition program designed to control portion sizes and the ratio of fats/carbohydrates/proteins in your diet. When everything is in harmony, your body’s Hormones are in balance and you are IN THE ZONE. While this diet can be tedious in the beginning, it is perfect for people who want to learn what to eat and how much to eat. It can be used and modified to help you lose weight, gain weight, increase performance, adjust certain macronutrients, etc.