It is well known that diabetes self-care behaviors are critical to disease progression. Unfortunately, many patients do not adhere to diabetes self-care recommendations despite their importance. Alcohol use has been identified as a barrier to diabetes self-care adherence. Excessive alcohol consumption not only negatively impacts diabetes self-care adherence but also affects the course of diabetes. Diabetes patients who are at-risk drinkers are likely to have poor diabetes treatment adherence, leading to increased morbidity and mortality. Alcohol consumption by diabetes patients is often inadequately assessed and addressed in their medical care. Brief interventions to reduce at-risk drinking have been well validated in a variety of patient populations and offer the potential to improve diabetes treatment adherence and outcome. Assessment and treatment of at-risk drinking could be readily incorporated into routine diabetes care. Strategies for brief assessment of and intervention for at-risk drinking are offered.