I know I should ask my HV about this but keep forgetting and DS is about to be 1. What happens at 12 months, do you just switch to cow's milk and keep on feeding the same amounts? (He's currently on Hipp Organic follow-on milk having rejected The Breast at 9m.) Do you switch gradually eg half and half? For nursery, should they now supply his milk or should I be taking in cartons for them (we currently supply bottles of formula)...?