The term 'fast mimicking diet' is to that what the term 'Kleenex' is to the actual tissue that's branded Kleenex. So, there are an infinite number of tissues that you can blow your nose into; there's only one Kleenex. There are an infinite number of ways that one can do a reduced-calorie fast that approximates some of the metabolic benefits of fasting, but there is only one fast mimicking diet.