Nutritionists agree that most diets aren’t worth the paper they’re printed on. They realize that the key to losing weight is adopting a sound, sustainable eating plan and then sticking with it, rather than opting for some wacko quick fix. Meanwhile if you are overweight or obese, you are at higher risk of developing serious health problems, including heart disease, high blood pressure, type 2 diabetes, gallstones, breathing problems, and certain cancers. That is why maintaining a healthy weight is so important: It helps you lower your risk for developing these problems, helps you feel good about yourself, and gives you more energy to enjoy life. The problem isn’t really with diets. It’s with a lack of guidance after your diet.