Someone probably told you that the way to lose weight is dieting and whole foods. That's a lie. What no one told you is that diet is literally everything you consume, not a program you follow. Some whole foods are high calorie, like avocados, and should only be eaten in moderation. If you're trying to lose weight, start by eating less calories than you burn. Worry about whether you're eating the right foods later. If you want to fail, stick with the fad diets, and fattening whole foods.