Passanie, Actually I have been to a GI doctor. He diagnosed me with a redundant colon (very long colon with lots of twists and turns.) An herbalist at a health food store told me about the Eat Right For Your Type book. As a vegan, I'm not going to start eating animal protein. I also read that there's not a lot of scientific evidence to back up the info in the book. I'll have to try the fennel tea! Thanks.