I don't know much about Canada so, except to observe that it's the home of Maple Syrup, which won't do you much good, I'll refrain from any advice. In general, the States is the home of over-sugared, carb-rich food in massive portions. However, New York is better - as is the West Coast. Apart from avoiding the obvious junk-food traps, you'll find more health-food places than average, particularly in the more bohemian areas like SoHo, the Meatpackers district and such like. You'll also find lots of places doing delicious steaks and grills - and if you avoid the mountain of French Fries that usually accompanies them, and opt for a salad instead, you should be OK (but watch for sugary barbecue sauces and salad dressings). As in the UK, ethnic restaurants are everywhere, and many of the same
caveats apply - Indian and Chinese food often has sugar added. Sushi restaurants can be good, but watch out for the rice used in the rolls, which is very sticky and carby, and also stuff like tempura, which has flour in the batter - but those are both things that are more about portion control and restraint, rather than total avoidance.
Finally, you must go to Katz's Deli, not because the food is particularly diabetic friendly (most things come in a sandwich), but because it's an experience. It's the place where they filmed
That Scene in "When Harry met Sally" and the food, which is traditional Jewish stuff like chopped liver, salt beef, pickles and the like, is to die for. Treat yourself
