Hi Welcome to the HCM I understand your concerns but don t worry. In case your child doesn t want to have milk, you may give him milk products such as curd, cheese, buttermilk, flavoured milk or milk shakes. Couple it with some healthy snacks which he likes to make the experience more pleasure ful. Since his weight is still less than normal, so also stress on giving him proper balanced diet. A good diet plan should include cereals, proteins, fats, vitamins and minerals. Hopefully this will be helpful. I would be happy to help you in any further questions. Take care