Trump explained, “One bad hamburger, you can destroy McDonald’s. I’m a very clean person. I like cleanliness, and I think you’re better off going there than maybe someplace that you have no idea where the food’s coming from. It’s a certain standard.” Trump has openly called himself a germophobe, to which many of his odd diet choices have been attributed. For instance, he uses a straw for his drink to avoid contamination, prefers steak well-done with ketchup, and uses utensils to eat fried chicken.

In the book Fire and Fury, Trump’s fondness of fast food was attributed to a longstanding fear of being “poisoned.” The concern wasn’t limited to accidental food poisoning, as Trump long preferred fast food because “nobody knew he was coming and the food was safely premade.” His former campaign manager Cory Lewandowki said in the book Let Trump be Trump, “on Trump Force One there were four major food groups: McDonald’s, Kentucky Fried Chicken, pizza, and Diet Coke.”

Trump famously served fast food to college football champions visiting the White House. He also wrote his own doctor’s note, which claimed him to be “the healthiest individual ever elected to the presidency.”

CNN – Donald Trump really likes fast food
The Washington Post – President Trump loves fast food. But does he love it for the wrong reasons?
Business Insider – Trump reportedly loves McDonald’s because he has a ‘longtime fear’ of being poisoned
Newsweek – Trump eats McDonald’s because he’s afraid of being poisoned elsewhere
Eater – Trump’s Weird Junk Food Habits Revealed by Former Campaign Manager