Science has now determined what makes us fat. It is not the fat in food, but sugar and starch. It is not calories that count, but another nutritional measure, the Glycemic Index (GI). The GI counts the sugar level in our blood. That has made it simpler. To stay slim, we don't have to starve ourselves with low calorie regimes. We only have to select the right food and we can eat plenty of it. This book provides a variety of food plans to match our lifestyle. We all have different body-energy requirements, depending on our lifestyle. People who work physically, and sporty individuals need sustained energy. The Glycemic Index identifies the food that provides sustained power. What we want to avoid are short energy spikes followed by fatigue, hunger pangs, and cravings for food. Many myths abounded in the past about weight control. People moved from one esoteric diet fad to another, often without success. This book explains the simple scientific facts. It provides exact food tables to choose from.