After a stroke at age 18, he started on a plant-based diet. Today he uses a plant-based diet to help patients control weight, heart disease, multiple sclerosis and cancer. His work has been advocated by highly-regarded experts like Dr. Dean Ornish and Dr. Caldwell Esselstyn. In 2011 he authored Senate Bill 380 for the state of California. The bill requires medical doctors to learn about human nutrition, and was passed unanimously. The man cares.