Rip Esselstyn, a former firefighter and author of The Engine 2 Diet, advocates a plant-strong diet to combat chronic diseases. Esselstyn inspired his fellow firefighting crew at the Austin Engine 2 station to follow a plant-based diet and dramatically heal their health. www.engine2diet.com

His father, Caldwell Esselstyn, MD, a surgeon at the Cleveland Clinic proved heart disease is reversible on a no oil, low fat, whole food plant-based diet.        http://www.dresselstyn.com