i pulled this from a website (decades of research back it up) pm for name blood type o should basically stick to a high protein diet (including red meat), low carbs, fruits and vegetables. cut out wheat and most other grains, corn, and avoid dairy products and most nuts. must engage in vigorous physical exercise. based on davids description he must be type o im apos and low and behold my diet and lifestyle fit niceley into this description (before i even knew about the blood type thing). blood type a must ideally be vegetarian - high carbohydrate, low fat. basically, stick to fruits and vegetables. this blood type is supposed to have relatively thicker blood, and a sensitive immune system. must not consume dairy products, animal fat and meat. should engage in gentle exercise such as yoga or golf, and meditate to deal with stress. blood type b can have the most varied diet of all the blood types. should consume a balanced diet of fruits and vegetables, grains, fish, dairy products. chicken is best avoided. should engage in moderate exercise such as swimming or walking. blood type ab has most of the benefits and limitations of types a and b. should consume a mostly vegetarian diet, and only on rare occasions some fish, meat (no chicken), and dairy products. should engage in calming exercises and relaxation techniques. considered the friendliest immune system of all the blood types. so basically everyone can go vegan except o's so there you have it.