I'd still suggest trying Eva on the nan HA. Sam has a bit of a dairy intolerance (I don't know if it's lactose, but it's puke city if he has cheese or yoghurt) and is fine with it. It comes in small, single-serve sachets if you want to get a small amount to try before getting a big tin. Chemist warehouse seems to have them, but I have also seen them in other places.

BW