A prospective, controlled, randomized, crossover design was used to examine a nutrition education curriculum's effects on knowledge and behavior of 463 limited-resource older adults in 13 counties. Counties were randomized to begin with the treatment or control curriculum and then the remaining curriculum. Participants completed a pre-test before beginning, a post-test at the completion of the first curriculum, and another post-test at the completion of the remaining curriculum. Significant results provide an evidence base for this intervention's effectiveness. The study reported here provides factors that can contribute to Extension outreach to limited-resource older adult audiences and to Extension scholarship.