Like "Welcome to Diabetic Connect (DC) we're all friends here ! Based on personal use I can say that it does but to what extent figuratively I cannot, I use cinnamon as well as many other spices and herbs in cooking so my opinion is biased. Just make sure that any cinnamon used doesn't contain any added sugars or sweetners, make sure that it is pure cinnamon, I use cinnamon sticks and crush or grind them as needed. Bases on studies and research they say it works well. Sprinkle a little on some slices of fruit, fruit salad, salads or other dishes and give it a try ! Pros and Cons ( You Decide )"