What If You Ate Only Fast Food for a Year?

What If You Ate Only Fast Food for a Year? You win a contest: one hundred thousand dollars, if you eat nothing but food from one fast-food restaurant for a whole year. No cooking. No dishes. Free burgers forever. The first week is the best week of your life. Then your taste buds change. Your gut changes. And your mom's birthday dinner turns into the hardest meal of the year. Would you take the deal? Tell us in the comments. 0:00 Day two hundred 0:12 What if you ate only fast food for a year? 0:16 The contest 0:49 The best week ever 1:34 The math of a meal 2:32 What could go wrong? 2:37 Your taste buds change 3:24 Your gut changes 3:58 Your body changes 4:38 Mom's birthday 5:21 The loophole 6:40 Day 365 Science notes: Bun Planet is a made-up restaurant, and this story is not medical advice. Adults need very roughly 2,000 to 2,500 calories a day, depending on body and activity. A burger, large fries and a large soda can add up to over 1,200 calories, and a large soda can hold more than 15 teaspoons of sugar. In a 2008 study from Linkoping University in Sweden (Kechagias et al., Gut), 18 healthy young adults roughly doubled their usual calories, mostly with fast food, and kept walking to a minimum for four weeks. They gained about 6 kilograms on average, and most of them showed a jump in a liver enzyme (ALT) within the first week. Their levels went back to normal in the weeks after the study. In a 2019 study at the US National Institutes of Health (Hall et al., Cell Metabolism), people on an ultra-processed diet ate about 500 more calories a day and ate faster than on an unprocessed diet, and gained about a kilogram in two weeks. On the unprocessed diet, they lost about the same amount. In an experiment described by Professor Tim Spector (The Diet Myth), a student who ate only fast food for ten days lost an estimated 40 percent of the kinds of bacteria detected in his gut. Taste cells are replaced roughly every one to two weeks, and people's taste for salt shifts with how much salt they usually eat. #whatif #fastfood #health #animation