Low residue diets are another diet for IBS. It’s meant to reduce the amount of indigestible food a person consumes. It is probably not something someone should be on for great periods of time as it can lead to malnutrition.
Information: Wikipedia – Low residue diet
Unfortunately I could not find a whole lot of books on this diet. Eating For IBS has “low-residue” listed in the long form title, but having read this book myself, I feel this is inaccurate. Maybe it’s more of a “reduced residue” diet, but I wouldn’t call it low residue. Replacing insoluble fiber with soluble fiber doesn’t equal low residue.