In the presence of numerous health behavior theories, it is difficult to determine which of the many theories is most precise in explaining health-related behavior. New models continue to be introduced to the field, despite already existing disparity, overlap, and lack of unification among health promotion theories. This paper will provide an overview of current arguments and frameworks for testing and developing a comprehensive set of health behavior theories. In addition, the authors make a unique contribution to the HIV health behavior theory literature by moving beyond current health behavior theory critiques to argue that one of the field's preexisting, but less popular theories, Social Action Theory (SAT), offers a pragmatic and broad framework to address many of the accuracy issues within HIV health behavior theory. The authors conclude this article by offering a comprehensive plan for validating model accuracy, variable influence, and behavioral applicability of SAT.