As mentioned above, stevia sweetener is attractive as a sugar substitute that does not cause an adverse affect on blood glucose levels. Bring on the chocolate cake (made with stevia of course). However, some studies suggest that the benefits of stevia are much greater. Even more encouraging for the stevia and diabetes link, stevia has also been shown to increase insulin sensitivity. Meaning, it may reduce insulin resistance, helping the cells use insulin. Additionally, it has been shown to help stimulate insulin production. These two benefits are great news for diabetics.