Breuning attributed much of his longevity to his diet. Shortly after his wife died, Breuning started eating out at restaurants. Eventually, he stopped eating out, but continued eating two meals a day. He ate a big breakfast and a hearty lunch but skipped an evening meal, snacking on fruit instead. Breuning drank much water through the day plus a cup-and-a-half of coffee with breakfast and one cup with lunch. He got up every day at 6:15 am and had breakfast at 7:30 am. He then took a stroll around The Rainbow for exercise and could then be found sitting in the lobby chatting with fellow residents and his many visitors. Breuning would retire to his room in mid-afternoon to listen to radio and when his vision allowed him, read the newspaper and his many letters received from people from all over the world.