Nutrition and Diabetes Nutrition is an essential component and critically important in preventing diabetes, managing existing diabetes, and at least slowing, the rate of development of diabetes complications. Diabetes is a group of diseases in which the body lacks insulin production or defects within the insulin receptors. As you complete the activities in this lesson, you will gain the knowledge and skills needed to: Differentiate the types of diabetes Explain the characteristics and presentation of both types of diabetes Compare and contrast current and traditional nutritional approaches Identify appropriate nutritional interventions based on client needs