The Blood Type Diet is the first diet to explore biological individuality. A particular diet may work well for one person and be ineffective for another. But, there is much more to your blood type than what foods will help you maintain a healthy weight. Your blood type reflects your internal chemistry. It is the key to longevity, fitness, and emotional strength. It determines your susceptibility to illness, the foods you should eat, and ways to avoid the most troubling health problems. The Blood Type Diet has been even further refined for specific health concerns such as cancer, diabetes, arthritis, cardiovascular disease, allergies, and other troubling health issues.