It shouldn't be a "diet", it should be a lifestyle! Don't listen to all the hype, pay attention to your body and give it what it needs to look and perform at its best, not what they claim that your blood type, body type or fitness level needs. Its so simple, yet many make it so complicated: Exercise, don't starve yourself, don't binge, don't purge, don't take diet pills, don't eat because you want to, eat because you need to. Honor any food allergies you may have and nourish your body with water and nutritious veggies, fruits, grains and other organic foods. When you embark on a complete lifestyle change, these things will become second nature, I guarantee it.