Hi there. I'm from cork too and I haven't seen any of the low-carb bread unfortunately. O'briens do an option of low-carb bread for their sandwiches thouhg. O'briens in paul street is probably the best place to try (there's another natures way in paul's street as well btw) as they have the low-carb ad in their window.

Wholewheat bread wise I find the dunnes stores wholegrain bread to be the best.