After a conversation with a renowned nutritionist, we asked what he thought of these diets and warned us to be avoided, as it may give us some satisfaction in the short term, but eventually regain the weight they had or gained weight, because these diets are difficult to maintain.
With good workouts, or at least one walk of 30 minutes a day, along with a healthy diet and light, we will be losing weight without realizing it. It is not something difficult to achieve.
In general these fast diets are used by actors or models who need to lose some kilos before a show or presentation, but they know they will return them back days later. Also known as the diet of Hollywood actors.
They usually last a couple of days, and achieved amazing results, and are not recommended for eg. take a whole week, because they are difficult to follow long