In the 1980s, low-fat diets were all the rage. In the 1990s, low-carb diets took off. And in the early 2000s, people went back — way back — to their caveman days, embracing everything from the Paleo diet to the raw food diet. But now that it’s 2021, nutritionists are rethinking what they’ve learned about weight loss science — and finding that the best diet might just be no diet at all. It's simple: eat like an Italian! Check out which food to include!