The objective of this study was to look at the relationship between literacy and diabetes outcomes, specifically glycemic control and quality of life. Trust, self-efficacy, and involvement in medical decision-making were posited to be mediating variables in the relationship between literacy and diabetes outcomes. Study participants were 268 patients from an internal medicine clinic. All participants had type 2 diabetes, took at least one medication for diabetes, and were above 18 years of age. Participants were administered surveys by a research assistant.