L.S.
As everyone else has said, my experience has been that babies will let you know when they've had enough. I just thought of something to add... You might want to keep an eye out for constipation. It didn't happen with my first baby, but my second got constipated when I started him on fruits and veggies. It kind of freaked me out! But I just started using a small amount of baby prunes every morning with breakfast and that took care of the problem. I just thought I'd give you the heads up in case it happens. But again, it doesn't happen to all babies.
Good Luck!
L.