Insulin | Types of Diabetes | Dr. Khalid Mahmud In this video, Dr. Khalid Mahmud explains the different types of insulin and how they work. He also discusses the effects of insulin on diabetes and how to take care of diabetes with insulin. If you’re looking for information about insulin and diabetes, then look no further! Dr. Khalid Mahmud will explain everything you need to know in this video! Whether you’re new to diabetes or you just want to know more about the different types of insulin, this video is for you!