My son he is 1year old but so thinn he eats ok nd drink milk fine but still so thin shall we change his formula milk he is drinking similac.

Got milk: If your son is 1 year old, you can switch his formula to regular whole milk. He should drink about 24 ounces of whole milk a day. If your child is drinking juice, i would either take the juice completely out of his diet or limit juice intake to 4 ounces a day which can be diluted with water. Child should be eating 3 meals and 2 healthy snacks a day. Decrease junky snacks.