Good afternoon. I am mother of twin boys. They r 4 year old now. They have reached every milestone at right time .as they were premature and underweight I was very particular of what they eat.in this process of including nutritional food in their diet I gave pureed food (chicken mutton eggs and veges and fruits. I would puree every thing as they were very fussy eaters. Now they got used to the purified and not chewing food at all. They chew crispy chips but not food. I am really worried. As I give unpurified food they simply vomit. I am really worried as they r not gaining weight.