How to tell if a diet works? The answer that comes to everyone is the following, of course: if it makes us lose weight it works , if instead it makes us gain weight or makes us feel the weight we don’t want, what kind of weight loss diet is it? Clearly, this is the first parameter to understand if a diet will work or not, but alas it is not the only one. Most people make a short-sighted choice with respect to the weight loss diet to follow: as long as it works, the goal is in fact to lose weight at any cost. And the problem is that most people not only regain the weight they lost , which is unhealthy anyway, but they get fat over time., because it tends to gradually impoverish lean mass, get stressed and slow down the metabolism. So if you are on a weight loss diet and you want to understand if the diet works, if you will be able not only to lose weight but also to maintain the new weight over time, just answer NO to the following questions. If you answer Yes, it means that the diet you are on is not really your thing, because every question is a problem.