My LO has only just moved from NUK 0-6 month teats size small (advised for water and breastmilk) to size medium (advised for newborns on formula) at 12 weeks old. Before this he was choking on the faster flow, and has been formula fed since week 2.
Does anyone know the difference between 0-6 months size large and 6-12 months size medium (which is the smallest)? I'm not sure which to get for next or if there's much difference. We've had so many feeding difficulties :(