This patent discloses compositions and methods of use thereof to normalize the blood glucose levels of patients with type 2 diabetes. A pump 50 withdraws a methane product stream from the column 24. The motor includes a sleeve, a stator mounted around the sleeve, and a rotor rotatably received in the sleeve. The housing includes walls supported on both sides when forming part of the module stack. The user input interface is operable by a user to control a pointer for providing user input at points on the display to perform one or more activities.