The topic of diets, weight loss and healthy eating has become very popular in recent years. We can find advice on planning menus everywhere: on internet forums, in lifestyle magazines, on TV, as well as in the statements of celebrities and influencers. Unfortunately, the popularity of this topic and the fact that it is often difficult to verify the truthfulness of the information we receive has resulted in many myths surrounding healthy eating. In this article we will try to dispel the most popular of them. Are there any fattening products? Is it forbidden to eat sweets on a slimming diet? Do you really need to take supplements?