A high-protein diet heavy on lean meat, poultry, fish, and vegetables, and light on grains, beans, and dairy. Also a various supplements to help with tummy troubles and other issues he says people with type O tend to have.
Type A blood:
A meat-free diet based on fruitand vegetables, beans and legumes, and whole grains – ideally, organic and fresh, because people with type A blood have a sensitive immune system.
Type B blood:
Avoid corn, wheat, buckwheat, lentils, tomatoes, peanuts, and sesame seeds. Chicken is also problematic. For type B, it’s recommended eating green vegetables, eggs, certain meats, and low-fat dairy.
Type AB blood:
Foods to focus on include tofu, seafood, dairy, and green vegetables. People with type AB blood tend to have low stomach acid. Avoid caffeine, alcohol, and smoked or cured meats.