In 2007, Cristin Kearns was a general manager at Kaiser Permanente, where she ran a large group of dental practices. She was working with medical doctors at Kaiser to figure out ways they could provide better care for patients with diabetes, who are more likely to have gum disease. The work took her to a conference in Seattle focused on the links between the two diseases. As she watched the talks, attended the panel discussions, and read the materials handed out, she was struck by one thing: No one seemed to be talking about sugar. Even a pamphlet intended for diabetic dental patients didn’t suggest cutting back on sugar.