Jerusalem artichokes are rich in inulin, a sugar that is not digestible by your body. However, it is very digestible by the bacteria in your gut and gas that they produce can be painful. This makes preparing them in the right way important. They can be pickled essentially pre digesting them. Alternatively they can be slow cooked, the roots will darken and soften as the sugars caramelize.
Cook in crock pot on low when you can watch it warm when you’re sleeping. Keep enough water in the bottom to keep moist.