This toolkit is a resource to help adult education instructors and administrators better understand the problem of health literacy as it affects their learners. It is designed to support creative approaches to helping learners increase their health literacy as they engage in sound, productive adult literacy instruction. Information resources are provided to educate the educator about health care in the United States and cultural issues relating to health, and to simplify creation of health lessons and curricula for teachers and programs. Five sections examine the following: (1) "What Is Health Literacy?" (definitions of health literacy from various stakeholders); (2) "Why Is Health Literacy So Important?" (statistics and background information on health care among different population groups); (3) What Resources Are Available?" (affordable health services, potential program collaborators and funders, and Web and print health teaching resources for use with adults); (4) "Teaching Health Topics"; (the actual teaching of health, with recommendations for teaching approaches, content ideas, curriculum design, instructional supports, and learner projects); and (5) "Addressing Teachers' Concerns about Teaching Health" (suggestions for ways to keep instruction of health topics engaging, informative, and productive while minimizing teacher and learner discomfort). (Adjunct ERIC Clearinghouse for ESL Literacy Education.) (SM)