Is it safe to consume cornstarch if you are a diabetic?

There is no reason you can't have cornstarch when you have diabetes. Just like anything else, moderation is the key. My mother was diagnosed as a diabetic when she was 35 years old (went in for a gall bladder operation and was then diagnosed with it) and she had to take the shots of insulin. She lived to be a ripe old age of 83 with few illnesses.