As part of a project supported by the Hospital Council of Santa Clara County, we developed and evaluated a community-based, peer-led diabetes self-management program for Spanish speakers, using a three-month pre-test/post-test design. Like our previous programs, this course was based on a needs assessment conducted with four groups of diabetic Latinos. In addition we conducted three focus groups with nutritionists and diabetes educators working in the Northern California Kaiser Permanente system. The purpose of these later groups was to identify content and key messages to include in the program. The program was then reviewed by diabetes nurse educators, nutritionists, and a diabetologist.