Abstract This web-based tutorial seeks to educate health care providers about botanical medicines and some issues surrounding their use. Written and reviewed by experts drawn from the University of Minnesota Medical School and community, it meets competencies for medical, nursing, and pharmacy education. Organized into sections, the self-study module provides definitions, a brief history of botanical use, the mechanism of action for botanicals, an overview of research and research issues, important information on regulation and manufacturing practices, and a summary of primary safety concerns. The module has interactive features, includes links to relevant organizations and a list of comprehensive references and concludes with a self-assessment quiz based on the learning objectives. These materials offer important information on complementary therapies, of which there is very little generally available. The online format matches well with new models of medical education that emphasize individualized learning and innovative tools. Online learning offers great flexibility to faculty and students. The individual online tutorials can be used in different courses in multiple ways; some faculty replace a reading assignment or class lecture with the online tutorial, then use class time for discussions arising from the tutorial. Other faculty use the tutorial as a resource for class projects. The tutorial is designed to allow direct access to any section, so learners can quickly find information relevant to their immediate needs.