My wee boy is dairy, egg and soya allergic, so yoghurt has never been an option for us, til i found Co Yo last week. A coconut one , that seems pretty pure ingredients wise. They also make sure the culture for the yoghurt is not grown on anything dairy.
It is not that easy to get hold of, but it is so tasty! Wish I'd known about whilst I was still on a restricted breastfeeding diet as I missed yoghurt so much!
This website is always great for tips, so thought i'd share, as I'm sure yoghurt has always been a no go for lots of others. They also make an ice cream.