My lo is 2yrs and 1month old and still breastfeeds..i only give him formula milk when I'm away,and also in the morning as part of breakfast (about 4oz only.) His pedia said breastmilk nutrients are not enough anymore for his age. But i still believe he will benefit a lot from it. He is very healthy, bright, hyper and doesn't get sick easily. What do you think mommies?