my son is 4yr 1 month old .he eats only sweet things and I do not know how to change his taste.he is not eating any daal ,vegetable even onion and his weight is 2 kg.please suggest me something

A. U Do one thing add both the things to the food whatever you are giving like salt and sugar together and gradually try to reduce on the amount of sugar in the food and salt should be intact this is one way to introduce for food to the child which has both salt and sugar and then gradually shifting to salt