Snacks are always a difficult thing, you now have to consider how every little thing effects your
blood sugar. What works for me are snacks that are low in carbs and packed with protein and fat (mostly protein). Nuts are a good choice, just look for lower sodium options. Jerky and other dried meats are good as well. Also consider fresh fruit but beware tropical fruits (Mango, pineapple, papaya, etc.) these are particularly heavy on sugar relative to size.