Health literacy is the capacity to obtain, interpret and understand basic health information and services and the competence to use such information and services to enhance health. People’s health behaviors and choices, and ultimately health and well-being are significantly shaped by the ability to obtain, process, and turn good information into action. Health literacy reflects the dual nature of effective health communication. Health literacy is functional. It occurs when skills and abilities to get and use information are aligned with the complexity/clarity of demands/tasks required for health. A health literate population is one where skills of the public are concordant with the demands of tasks required for health.