hi mate, you have to eat more than one meal a day ie breakfast,lunch and you main meal at night. i know what your saying i only eat one meal how come i’m putting on this weight. i used to be the same i used to eat my main meal at night and i was pilling on the pound’s, but now i have listened to the wife and for breakfast i have 2 slices of toast,lunch i have a sandwich and then at night i have my main meal. your body will just gather up fluid by only eating one main meal. good luck hope this help’s you 