Legendary competitive eater Takeru Kobayashi announced he is retiring because he’s lost his appetite. Doctors found his brain developed an aversion to highly processed foods. Board-certified neurologist Dr. Tom Pitts says processed foods are a “national health epidemic.” #TakeruKobayashi #HotDogContest #Food Start your day with "Morning in America," NewsNation's live three-hour national morning newscast hosted by Markie Martin. Weekdays starting at 6a/5C. #MorningInAmerica NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij