
The Fasting Mimicking Diet (FMD) is a scientifically formulated 5-day program designed to trick the body into thinking it is fasting while still allowing food intake. Unlike traditional fasting, the FMD does not rely on specific timing or fasting windows. The diet is based on healthy, natural products and ingredients and involves a specific macro- and micronutrient breakdown. The FMD has been shown to have many benefits, including reducing biological age, improving cognition, reducing the risk of cancer and heart disease, and possibly even protecting against Alzheimer's.
| Characteristics | Values |
|---|---|
| Type of Diet | Prolonged Fasting |
| Duration | 5 Days |
| Frequency | Once a Month for the First Three Consecutive Months |
| Calorie Intake | Day 1: 1,100 calories; Days 2-5: 725 calories |
| Macronutrient Breakdown | Day 1: 11% protein, 46% fat, 43% carbohydrates; Days 2-5: 9% protein, 44% fat, 47% carbohydrates |
| Micronutrient Breakdown | Plant-based protein sources, mono- and polyunsaturated fats, complex carbohydrates rich in fiber |
| Water Intake | Minimum of 70 ounces per day |
| Benefits | Reduced inflammation, improved cognition, reduced risk of cancer, heart disease, and Alzheimer's, decreased biological age, improved weight management, lowered risk of Type 2 diabetes |
| Food Options | Clear broths, vegetable soups, small amounts of nuts and olive oil, leafy greens, broccoli, cucumbers, carrots, berries, beans, lentils, legumes |
| Food Restrictions | High-glycemic foods (white rice, pasta, bread, pastries, cookies, cakes, sugar-sweetened beverages), instant oatmeal, cornflakes |
| Commercially Available Program | ProLon |
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What You'll Learn
- The Fasting Mimicking Diet (FMD) is a scientifically formulated 5-day program
- FMD is designed to trick your body into thinking it is fasting while allowing food intake
- FMD is based on a specific macro- and micronutrient breakdown
- FMD is commercially available under the brand name ProLon
- FMD is safer than long-term calorie restriction and prolonged, frequent fasts

The Fasting Mimicking Diet (FMD) is a scientifically formulated 5-day program
On day one of the FMD, individuals consume 1,100 calories, with 11% from plant-based protein sources, 46% from mono- and polyunsaturated fats, and 43% from complex carbohydrates. On days two to five, calorie intake is restricted to 725 per day, with a macronutrient breakdown of 9% protein, 44% fat, and 47% carbohydrates. It is recommended that individuals consume a minimum of 70 ounces of water each day.
The FMD is designed to be repeated once per month for the first three consecutive months to achieve optimal results. It differs from traditional fasting methods by not adhering to specific timing or fasting windows. The diet is commercially available under the brand name ProLon, which offers a meal kit with plant-based soups, energy bars, energy drinks, chip snacks, and tea.
Preliminary studies have suggested that the FMD can provide various health benefits, including reduced inflammation, improved cognition, a reduced risk of cancer and heart disease, and potential protection against Alzheimer's. It has also been shown to decrease liver and abdominal fat, reduce insulin resistance, and lower biological age.
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FMD is designed to trick your body into thinking it is fasting while allowing food intake
The Fasting Mimicking Diet (FMD) is a five-day, low-calorie diet plan designed to trick the body into thinking it is fasting while allowing the consumption of some food. The diet focuses on a macronutrient ratio of approximately 10% protein, 45% fat, and 45% carbohydrates. On the first day, individuals consume around 40%-50% of their usual calorie intake, and this is reduced to 10%-20% for the next four days. The FMD is primarily plant-based and can include clear broths, vegetable soups, small amounts of nuts and olive oil, vegetables, small servings of berries, and limited amounts of beans, lentils, and legumes.
The FMD is based on scientific research and aims to provide the benefits of fasting while minimising the negative side effects associated with fasting, such as hunger, fatigue, and headaches. These benefits can include improved weight management, lowered blood pressure, improved metabolism, cellular rejuvenation, and reduced cholesterol levels. The FMD has also been linked to potential cardiovascular benefits and a reduced risk of chronic diseases such as diabetes, cancer, and Alzheimer's disease.
It is important to note that the FMD is not suitable for everyone. Individuals who are pregnant or breastfeeding, those with a history of eating disorders, and people with certain medical conditions should consult with a healthcare provider before considering the FMD. Maintaining proper hydration is crucial during the FMD, and it is recommended to consume at least 70 ounces of water daily.
The FMD is a unique approach to fasting that allows individuals to experience the benefits of fasting without the total food restriction associated with traditional fasting methods. It is an alternative for those who cannot stomach the idea of not eating anything at all during a fast. By tricking the body into a fasting state, the FMD provides a way to fast while still consuming certain types and amounts of food.
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FMD is based on a specific macro- and micronutrient breakdown
The Fasting Mimicking Diet (FMD) is a scientifically formulated, low-calorie diet plan designed to trick the body into fasting mode. It is based on a specific macro- and micronutrient breakdown, which is said to provide the body with essential nutrients while also extending lifespan and reducing the risk of age-related diseases.
The FMD typically lasts for five days, with a calorie intake ranging from 700 to 1,100 calories per day. The first day of the FMD consists of about 1,100 calories, with 11% from plant-based protein sources, 46% from mono- and polyunsaturated fats, and 43% from complex carbohydrates that are rich in fiber. Days 2 to 5 consist of approximately 725 calories per day, with a macronutrient breakdown of 9% protein, 44% fat, and 47% carbohydrates.
During the FMD, it is recommended to consume a variety of foods, including tofu or tempeh, vegetable broth, leafy greens, cauliflower, berries, nuts, carrots or celery sticks, and kale crackers. These foods provide the body with the necessary macro and micronutrients while adhering to the calorie restrictions of the diet.
The FMD is designed to promote autophagy, which is the body's natural process of removing waste and maintaining healthy cells. By enhancing autophagy, the FMD helps eliminate damaged or harmful cells that contribute to disease and aging. This diet has been shown to have potential benefits for weight loss, reduced blood sugar, decreased cholesterol levels, and reduced inflammation.
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FMD is commercially available under the brand name ProLon
The Fasting Mimicking Diet (FMD) is a five-day low-calorie diet plan designed to trick the body into fasting mode. The FMD is commercially available under the brand name ProLon. ProLon is based on over 20 years of scientific research and $34 million in R&D. It is a 5-day dietary program that nourishes the body and is clinically tested to have similar weight loss, percentage of body fat reduction, and similar visceral fat reduction when compared to 120 days of a heart-healthy diet.
ProLon FMD is the newest form of fasting, providing a unique approach to fasting that effectively tricks the body into thinking it is fasting while allowing food intake. By doing this, one can reap the benefits of fasting while minimizing the challenging parts, such as hunger, fatigue, and headaches. The ProLon meal kit is currently the only fasting-mimicking diet program on the market. The meals come in five small boxes (one for each day) and include plant-based energy bars, soups, a variety of snacks, drinks, and supplements. All items in the ProLon meal kit are carefully studied and designed to nourish the body and maintain healthy levels of metabolic markers, cellular rejuvenation, and healthy aging.
The ProLon FMD is scientifically designed to enhance autophagy, effectively boosting the body's natural "housecleaning" process. By promoting autophagy, the diet helps eliminate damaged or harmful cells that contribute to disease and aging. Increased autophagy supports overall well-being and plays a key role in reducing the effects of aging and disease. The FMD is often done under medical supervision, especially for people with pre-existing conditions, but it can also be followed at home with commercially available FMD kits like ProLon. These kits typically provide pre-measured meals to ensure correct calorie and nutrient intake.
The ProLon FMD is based on research by Dr. Valter Longo and his team, aimed at promoting cellular regeneration, improving metabolic health, and possibly extending lifespan. The diet includes specific foods designed to prevent the activation of pathways that break the fasting state. It does not rely on strict timing or fasting windows, offering a unique alternative to traditional fasting.
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FMD is safer than long-term calorie restriction and prolonged, frequent fasts
The Fasting Mimicking Diet (FMD) is a safer alternative to long-term calorie restriction and prolonged, frequent fasts. Unlike traditional fasting, which restricts almost all eating and drinking, the FMD allows for a limited intake of specific nutrients to sustain the body. This low-calorie approach enables individuals to reap the benefits of fasting while minimising the negative side effects associated with fasting, such as hunger, fatigue, and headaches.
The FMD is a scientifically formulated 5-day program designed to mimic a 5-day water fast while providing essential nutrients and calories. It is based on years of scientific research and has received millions of dollars in funding from the National Institutes of Health (NIH). The FMD operates on a monthly cycle, with individuals consuming around 40%-50% of their usual calorie intake on the first day, and then reducing to 10%-20% for the next four days.
The FMD primarily includes non-starchy vegetables, whole fruits, and healthy fats, while restricting high-glycemic and high-protein foods. This dietary composition nourishes the body while keeping calorie intake low enough to trigger fasting-like biological responses. The FMD has been linked to various health benefits, including weight loss, improved metabolic health, reduced chronic disease risk, and potential cardiovascular advantages.
However, it is important to note that the FMD may not be suitable for everyone. Individuals who are pregnant or breastfeeding, those with a history of eating disorders, and people with certain medical conditions should consult with their healthcare provider before considering the FMD. Additionally, maintaining proper hydration is crucial during the FMD, with experts recommending a daily water intake of at least 70 ounces.
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Frequently asked questions
The Fasting Mimicking Diet (FMD) is a five-day low-calorie diet plan designed to trick your body into fasting mode while still providing necessary nutrients. The diet is based on healthy natural products and ingredients and relies on a specific macro- and micronutrient breakdown.
The Fasting Mimicking Diet has been shown to have many benefits, including reducing biological age, improving cognition, reducing the risk of cancer and heart disease, and possibly even protecting against Alzheimer's. The diet has also been shown to decrease liver and abdominal fat, improve weight management, and lower the risk of developing Type 2 diabetes.
It is recommended to always check with your doctor before starting any new diet or making any changes to your diet. The FMD program is commercially available under the brand name ProLon, or you can prepare your own meals based on the recommended calorie and macronutrient intake.










































