The Fasting Mimicking Diet was created by Dr. Valter Longo, an Italian biologist and researcher. He sought to replicate the benefits of fasting while still providing the body with nutrition. His modifications avoid the calorie deprivation associated with other types of fasting.The Fasting Mimicking Diet - or "fast mimicking" - is a type of intermittent fasting. However, it differs from more traditional types, such as the 16/8 method.The Fasting Mimicking protocol is based on decades of research, including several clinical studies.Though anyone can follow the principles of fast mimicking, Dr. Longo sells a five-day weight loss program called the ProLon Fasting Mimicking Diet through L-Nutra, a nutrition technology company that he started.The ProLon Fasting Mimicking Diet plan includes five-day, prepackaged meal kits.All meals and snacks are whole-food derived and plant based. The meal kits are low in carbs and protein yet high in healthy fats like olives and flax.During the five-day period, dieters only consume what's contained within the meal kit.Day one of the diet provides approximately 1,090 kcal (10% protein, 56% fat, 34% carbs), while days two through five provide only 725 kcal (9% protein, 44% fat, 47% carbs).The low-calorie, high-fat, low-carb content of the meals causes your body to generate energy from noncarbohydrate sources after glycogen stores are depleted. This process is called gluconeogenesis. According to one study, the diet is designed to provide 34-54% of normal calorie intake. This calorie restriction mimics the body's physiological response to traditional fasting methods, such as cell regeneration, decreased inflammation, and fat loss.ProLon recommends that all dieters consult a medical professional - such as a doctor or registered dietitian - before starting the five-day fast.The ProLon five-day plan is not a one-time cleanse and must be followed every one to six months to obtain optimal results.The ProLon Fasting Mimicking Diet is a low-calorie, five-day eating program meant to promote weight loss and provide the same benefits as more traditional fasting method.The ProLon meal kit is broken down into five individual boxes - one box per day - and includes a chart with recommendations on what foods to eat and the order in which to eat them.A specific combination of food is provided for breakfast, lunch, dinner, and snacks, depending on the day.The unique combination of nutrients and reduction in calories is meant to trick your body into thinking it's fasting, even though it's being given energy.Because calories vary between days, it's important that dieters do not mix foods or carry foods over into the next day.All foods are vegetarian, as well as gluten- and lactose-free. The purchased kit comes with nutritional facts.