There is a book called Eat Right For Your Bloodtype. This book has totally changed my eating habits. I was having all sorts of stomach problems and other stuff. My Dr couldnt really figure out what was wrong, I didn't have any food allergies or I wasnt lactose intolerant. I got my blood tested and I am A-. I got this book and followed the diet for A-'s. I eat mainly vegetables and fruit. I learned to like Soy products and I eat very little dairy and I eat 3-5 ounces of chicken or fish a week. I have have lost 23 pounds and I absolutely feel great.