Eating for your Bloodtype

I was recently recommended to read "Eat Right 4 Your Type: The individualized diet plan" book.  I briefly read over the synopsis for each bloodtype - particularly my own which is A type.  It seems to make a lot of sense historically and if you have specific "issues" with certain foods, you may find the information to coincide with what you already suspected.  If you want to know specific foods to eat or not to eat, then I suggest purchasing the book.

Here's the basic idea:
Type O: The hunter
       * meat eater
       * hardy digestive tract
       * overactive immune system
       * intolerant to dietary and environmental adaptions
       * Responds best to stress with intense physical activity
     
Type A:  The cultivator
       *  The first vegetarian
       * Reaps what he sows
       * Sensitive digestive tract
       * tolerant immune system
       * responds best to stress with calming action

Type B:  The Nomad
       * Balanced
       * Strong immune system
       * most flexible dietary choices
       * dairy eater
       * responds best to stress with creativity

Type AB:  The Enigma
       * modern merging of A and B
       * sensitive digestive tract
       * overly tolerant immune system
       * an evolutionary mystery