I worried with dd1 that she would keep eating till she burst as she never seemed full! It is definitely better than them not eating, and I certainly found that she regulated what she needed fine - she's about 25th percentile, I think, so I don't think she overate. I do wonder if perhaps they eat a bit more than they need when they are excited about the whole new exciting foods thing, but then slow down once they are a bit more accustomed to it.