 Now, my grandpa had been pretty mad when my dad walked away from the ice cream company. He and my dad went years without speaking. Then something remarkable happened. In 1989, Grandpa Irv, then in his early 70s, was suffering from diabetes, heart disease, and weight problems. He always eaten the modern diet with a double scoop of ice cream on top. His cardiologist told him he didn't have long to live unless he changed his diet. And then the good doctor handed him a copy of my dad's book, the book 31 Day Food Revolution by Ocean Robbins.