My team suggested high calorie versions of almost everything to help gain weight - full cream vs skim milk, butter and peanut butter on toast etc. there are high calorie versions of boost, etc. the creon helps your body digest the fats & protein in your food. Dietician should also be able to help with insulin dosages. I am on oral diabetes meds plus insulin. I try to get some exercise (as much as my energy/body will allow) and generally try to eat a balanced diet. Diabetes nurse has been a big help. Good luck and best wishes!