In response to the high rates of obesity and diabetes in her Navajo community, she and a number of others worked to create a trailblazing “junk food tax.” Officially called the Healthy Dine Nation Act and signed into law in April 2015 by Navaho President Ben Shelley, the law requires consumers to pay an additional two percent tax on top of Arizona’s five percent sales tax for high-fat and high-sugar foods they buy on the Navajo reservation.