Ok no white, void of nutrition bread. Read the labels. I would assume in NI they have 100% whole wheat bread. Or bread with multiple grains. One other you could look for is Ezekiel flax sprouted bread. Here, it's in the freezer section. You can also consider making your own low carb bread. The ingredients are much easier to find online than they use to be. But again, I'm sticking to the advice I gave you before. Please talk to a nutritionist about a diabetic diet. If you don't know a lot about food, that would be the best place to start.
Awh, sure, there's wheaten bread here but I find its pretty high in sugar, I wonder if the flax bread is the same as polish black bread or the bread that they make Rubin sandwiches with, I'm trying to remember what its called, there's more than one variety of it and I know that for sure, having eaten a proper Rubin in a jewish deli in London and made my own with the different things in the supermarket here in NI, I would say that my version was awful and no mistake.