my son is going yo be 5 yr old he weighs only 13 kg and also his height is small... what should I give him so that his name weight increses and also height... he is picky eater #Vaccination

A. give a variety of food. Diet like protein source of paneer or soybean or egg and also green leafy vegetable and colourful fruits for all the vitamins that will also help in the building of immunity for the baby . any protein powder after age of 2 year like pediasure