I would recommend looking to the Dr. McDougall Program. He has a book out that has to do with gastro-intestinal health.
DH has chronic GERD that causes him a lot of problems. Since I switched over to this way of eating, his health has been much better and the only time he has GERD problems is when he eats something too oily. He eats a WIDE range of foods, too.
Here's a link to the book I"m talking about
http://www.drmcdougall.com/store_dt.html . I would recommend getting the book The McDougall Program (
http://www.drmcdougall.com/store_mp.html ) by Dr. McDougall as well, it's a good starting point.
Jen D.