Calley Means is the cofounder of True Medicine, built around the idea that food (and lifestyle habits like exercise and sleep) is medicine. The company’s goal is to make tax-advantaged spending on healthy food and exercise seamless.

He co-authored New York Times bestseller Good Energy: The Surprising Connection Between Metabolism and Limitless Health with his sister Dr. Casey Means, about how preventable cellular dysfunction (caused primarily by food) is at the root of nearly every chronic condition that plagues American life—and how to fix it.