Engine 2 Diet creator celebrates new paperback book, monthlong healthy eating challenge AUSTIN, Texas, 2016-1-5 — /EPR Retail News/ — Rip Esselstyn is no stranger to a healthy eating lifestyle. The former Austin firefighter created the “Engine 2® Plant-Strong®” brand—named for his former firehouse—after promoting a plant-based diet to his colleagues. After publishing his first book, “The Engine…