The former University of Washington mechanical engineering professor says he's succeeded because he treats his body like a car and he only eats enough food to fuel the machine.
"To keep your diabetes under control you only eat the food you need to before you have activities to perform," Krause said. "I eat to keep me alive instead of eating all the time, or for pleasure."
He says he's not as active as he once was, so he doesn't need a lot of fuel – or variation in diet. For breakfast every day, he eats a bowl of nuts and five pitted prunes. He usually skips lunch and eats a salad with some lean meat for dinner.