my son is now 9 month old which type food is good for his weight gain

A. Now that your son is already 9 months old, there are few new food introductions that can be made in a baby's diet like boiled egg, chicken and vegetable soup, oats with nuts, seasonal fruits, dalia, khichdi, etc. For weight gain, include fat and protein rice foods like rice, potato, pumpkin, sweet potato, carrot, milkshakes with dry fruits, legumes, ghee, banana, avocado, etc.