It all depends where you are at in terms of your bodies tolerance level for carbs - you can only work that out by testing your blood sugar, eating a normal sized portion of the item you want to guage the effect of, and retesting 2 hours later
We all have different levels of tolerance for carbs and these can change over time
When i was first diagnosed, 1 slice of stoneground wholemeal bread was fine but anything with white flour in it caused big spikes, over time that chaged and wholemeal wheat began to spike my sugars but rye and spelt were ok, now 20+ years on from the start, I can only safely eat 1 slice of some (not aii) of the high protein breads on sale or home made low carb 'bread' made from almond / coconut flour - you can find loads of recipes for varients of these on low carb sites.