Read labels and throw out all food that has sugar in the first five ingredients.
Don’t be fooled by foods that are low in fat but high in sugar. The sugar causes inflammation. And if you eat more sugar than you need, it gets morphed into omentum fat, that dangerous fat around the belly. For a while in the 1990s, many people used “low fat” salad dressings that turned out to be loaded with calorie-laden sugar. And those dressings didn’t contain any good fats like olive oil, which are beneficial. Healthy fats are better than empty sugar calories. (Because the sugar in fruit is in a complex carbohydrate, it’s usually fine.)