Eating Too Much Sugar and Processed Foods
While you shouldn't swear off sweets forever, the typical Western diet tends to be high in sugar, refined carbohydrates, and processed food. It's not just the empty calories you need to worry about; it's how these foods affect your insulin. Jason Fung, MD, a nephrologist (kidney specialist), explained that processed carbs and sugary foods such as ice cream, cookies, muffins, crackers, bagels, and white bread spike your insulin levels, which can causes weight gain.
Aside from being high in carbs and calories, these foods don't offer your body any nutrition, so you end up feeling hungry, which makes you eat more. Eating sugary foods also increases your cravings for them, another contributor to overeating.