If coffee and blood sugar insulin levels are a concern, coffee lovers don’t have to be discouraged. Decaffeinated coffee has not been shown to affect the blood sugar or glucose levels and so is an alternate for people who what their coffee flavor without the negative effects of caffeine.Coffee and blood sugar levels are also directly related due to the fact that caffeine stimulates the way the body releases stress hormones. Stress hormones are known by doctors and researchers to play a direct role in the way the body handles insulin and blood glucose levels. In order to show this correlation, researchers injected caffeine in some test subjects and placebos in other test subject. Afterwards they measured the blood glucose levels of both groups and found that caffeine can cause a significant decrease on blood glucose, up to a fifteen percent decrease in sensitivity. This means that those with the caffeine were not able to use the blood sugar in their body for energy and in turn their blood sugar was higher than is considered healthy. In the end, researchers and doctors have determined that people with Type 2 diabetes should control the amount of caffeine they drink in order to have better control over their blood glucose levels and keep their diabetes under control. This can be accomplished by decreasing the amount of coffee consumed on a daily basis or by switching to decaffeinated coffee. Coffee and blood sugar insulin levels should be considered just as carbohydrates and blood sugar insulin levels are considered when managing diabetes.