The same message to everyone does not work if the goal is to prevent obesity and excessive weight gain in the population, including those considered to be at low risk for gaining weight. In many cases, it is often difficult for people to maintain their weight following weight loss, often returning to the same weight that they were at before the weight loss or gaining even more. One study suggests that it is important for society to broaden the focus from treatment of overweight and obesity to prevention of initial weight gain.