Hi, what I miss out there are fresh, real food, low carb alternatives, not "low sugar" ones. In fact, I'm happy for there to be a dash of sugar if the slab of flour is taken out.
The idea of a "diabetic" cafe is rather depressing to me, I don't mind having diabetes but to define a sociable/supposedly pleasurable place event around such a medical word? I think most people would be put off too. I also think you would be limiting yourself if you targeted only diabetics. If I was setting something like this up, I would base it on whole, fresh foods with ample low carb options, and the most I would mention about the diabetes condition is some kind of wry sideline that your foods are kind to the blood sugars, anyone's blood sugars. (Eating excessive sugar and carbs puts almost everyone's system under a strain, encourages obesity, creates low blood sugar troughs, etc etc).