Healthy Dieting: Increase Health with Blood Type Recipes and Grain Free The Healthy Dieting book covers two diet plans that promote good health, the Grain Free Diet and the Blood Type Diet. Each of these diet plans offer recipes that include foods to help make the body stronger and healthier by addressing some health concerns. The grain free diet is good for people who have gluten intolerances and allergies. The blood type diet is good for people who follow the thought that certain foods are good for each different blood type. The diets in this book can be combined if the people who are intolerant to grains just avoid the recipes that call for grains in the blood type diet section.