Dietary intake is a major contributor to both the development and management of type 2 diabetes. Multiple studies have provided evidence that diabetes nutrition therapy is effective for improving glycemic control and other metabolic outcomes. However, there remains no conclusive evidence as to which diet, if any, is the most effective for optimizing glycemic control in patients with diabetes. The roles of differing macronutrient percentages, eating patterns and weight loss interventions are controversial topics concerning dietary intake. In particular, there are no ideal percentages of macronutrients or eating patterns that can simultaneously apply to all persons with diabetes. A reduced energy intake for persons with type 2 diabetes, referred to as nutrition therapy intervention, has been shown to be effective for achieving glycemic and other metabolic outcomes. For such a treatment option to be effective, diabetes nutrition therapy must be individualized. Thus, treatment goals, personal preference, individual ability and willingness to make lifestyle changes must all be considered when educating or counseling individuals with diabetes.