One of the best ways to use your diet to improve your overall digestive health and regularity is to increase the amount of foods that you eat that are high in dietary fiber. This is even possible on a ketogenic diet. A few good choices of low calorie, high fiber vegetables are greens (kale, spinach, sprouts, arugula, Romaine lettuce, etc.), broccoli, Brussels sprouts and artichokes.
KCD - Diet