'the clever guts diet'
Dr, Michael Mosley also TV Presenter Ďs brilliant book is the Authentic book to help with all kinds of Digestive problems including IBS ,Chronís Disease.
He swallowed a miniature camera to see his own gut in action, from the time he eat food to its process through the body and elimination, and how long food and liquid tacks to digest.
It also includes an eating plan with recipes to alleviate and even cure digestion problems
You can buy used copies on Amazon UK from £1.62