Which protein bars and snacks are ok for diabetics?

Focus on your goal which is to reduce insulin resistance.  To reduce insulin resistance eat low carbs, eat less frequently and walk more.  I would recommend eating a high fat, low carbo, moderate protein  meal til you are satiated  around 1 pm and the next meal around 5 pm.  This will give you about 18 hours fasting per day which is critical to reverse insulin resistance.  You could also add a bit HIT,(high intensity training),  which is sprinting at top speed for 30 seconds or so at a time, no more.  Do this 3 or 4 times, if your doctor says it is safe for you.  This will get your heartrate to almost maximum, but not long enough for cortisol to be released.  This will increase your HGH, (human growth hormone), which helps you maintain and build muscle and burn fat.  This is how Olympic athletes train.  This is a process that will take years, everybody is different in the time, but this works for all.  Remember our bodies are not designed for the modern diet of carbos 3  meals a day plus snacks and no time of famine for years and years.  

Thank you Redbone5335 for the suggestion, will try the sprinting, have read from other sources that it does just what you say. Anything is worth a try!

@MattKramer I second the KIND bars, they're pretty good! @mikehaynes I was also told to aim for  carbs + protein so peanut butter is my go to. It's so good on apples.