If one wants to control their weight they’ll have to control their lifestyle from now on. The old fashioned Mediterranean diet has been working for years. Folks might want to consider that option if they’re serious.
Depending on what you mean by Mediterranean diet, it can be a great improvement over the standard diet and many people can do well on it. Like with most diets, the benefits come from what you are avoiding more than what you are eating. It's getting less bad, but not ideal.