I remember my HV , and pretty much everyone else, encouraged us to feed on demand, which is what I have been doing with my little one since birth. He has been weighted twice in the past week and a half, yesterday and 10 days ago as we visited GP because of other feeding concerns (reflux). He gained 400 grammes in those 10 days and went up a percentile. We currently have a 'target' of 600 ml in a 24 hour period based on his weight, used to be around 525 two weeks ago, but even then he sometimes hit 650-700 two weeks ago already, which I attributed to growth spurt. Now I am thinking maybe we should have curbed his appetite?