What is a Diet?
A diet can be defined as a temporary way of eating that favors, excludes and limits certain foods with the aim of losing weight or changing one’s lifestyle. A key characteristic often present in a diet is caloric restriction (limiting intake) and/or cognitive restriction (create rules or set conditions for eating). An example of this can be refraining from eating chocolate during the week or avoiding all foods containing added sugar.
Because the majority of diets are restrictive, it is difficult to maintain these habits in the long term. Moreover, because the body loves balance, it tends to slow down the metabolism and modify the signals of hunger and satiety to counter weight loss. This means that the vast majority of people will regain the lost weight in the following years².