One of the most important health benefits of the keto diet is that it can help people suffering from type 2 diabetes reduce their need for diabetes medication. This is happening because ketogenic diets are so good at reducing blood sugar levels. In 1 study, about 95% of the people were able to either come off their diabetes medication or at least reduce the need for it. People who use insulin could need to reduce their medication before starting a ketogenic diet and should definitely speak to a medical professional before making this change.