It’s a terrific, in depth analysis of what FODMAPs are and how they affect IBS sufferers. It’s full of tips how to implement the diet and how to reintroduce FODMAP foods once you’ve stabilized yourself. I took it out of the library, and I would recommend reading it to gain a better understanding of your diet and yourself.
Here’s a list of some research you can do on your own to understand FODMAPs:
(I reserved their book at the library)