Menu for one day:
Breakfast: a cup of milk with cereal and two slices of toast with butter, tea or plain water
Between meals: a banana, a cup of rice milk or a sandwich with cheese and butter
Lunch: a boiled potato, 100 g fish (canned or fried) and two baked potatoes and cottage cheese
Dinner: a small yogurt, a cup of milk with rice or two slices of toast.
Keep this diet at least a week!