PSMF Diet – (PSMF) Protein Sparing Modified Fast

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The Psmf Diet or Protein Sparing Modified Fast is a ketosis-based way of eating designed to invoke rapid and significant weight loss in just weeks with minimal exercise. It is not a permanent way of eating, but instead, the PSMF diet is used to help people lose a significant amount of weight and then transition to a sustainable diet that helps keeps weight off.

Those who have heard of other ketogenic diets are probably familiar with the basic concept. However, PSMF varies from these routines because it severely limits the number of calories that you can eat.

The basic idea behind PSMF is to trigger what are known as starvation and ketogenic modes in your body. When these modes activate, your body will start to burn fat instead of carbohydrates to help you lose weight.

Your metabolism will be boosted as well, which is another element that PSMF shares with other fasting-type diets. However, PSMF is much different from these routines. [1]

That’s because it focuses on using protein and other types of macro and micronutrients to support your health more fully. Unlike some forms of fasts, which can cause a decrease in muscle mass and even tissue health, PSMF works to keep you healthy. As a result, it is one of the safest ways to drop weight quickly and with a minimal amount of exercise (though workouts are allowed).

And while it is true that PSMF activates similar processes in your body when compared to keto diets, it is not truly a keto diet. That’s because you will be limiting the amount of fat you eat while on PSMF, which is not a goal for a standard keto diet.

While this means that a PSMF routine is stricter and more difficult to maintain than a usual keto method, it is also more effective at burning fat. [2]

Beyond that, a PSMF diet can also be used to provide you with a broad range of other benefits. For example, studies have shown that PSMF can be a healthy way of managing type 2 diabetes in those who are very obese. In some health centers, such as the Cleveland Clinic, it is one of the most utilized and effective ways of quickly burning fat off of an obese person’s body. [3]

Before you start this type of routine, it is essential to know how it works, what kinds of foods you can eat, and much more. That’s because many side effects can decrease the effectiveness of this routine if you are not careful. While these side effects are rarely dangerous or life-threatening, they may be an issue if you aren’t adequately prepared. So make sure that you thoroughly read through every following section to get a tighter grasp of what to expect on PSMF and how it differs from a regular keto diet.

How Does the PSMF Diet Work?

how does the protein sparing modified fast work

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A protein-sparing fasting diet operates on the same extreme calorie restrictions common with other fasting diets. That said, it is designed to be less severe and easier to handle than these stricter routines. For example, a complete fast is one that restricts your eating to almost nothing.

Such periodic fasting has been connected with a variety of health benefits, including decreased aging symptoms. [4]

Your only food source will be calculated amounts of protein based on your lean body mass. It’s very individualized. Eating lots of healthy and low carb vegetables are also a key in this diet and helping you to stay full.

When you start a PSMF routine, you are eliminating as many carbohydrates from your diet as possible.

Protein Sparing Modified Fast


As a result, your body will have no sugar to burn for energy. In a standard diet, your body will digest carbohydrates and use insulin to break it down into its bare components.

This process is an issue for those who are trying to lose weight because insulin naturally suppresses your fat burning capabilities. [5]

As a result, suppressing your production of insulin is one of the best ways to help you burn fat, lose weight, and get into shape as quickly as possible. Multiple studies have shown this to be true, which is where diets like PSMF originate. The idea behind restrictive diets like these is to minimize your insulin production and to force your body to start burning fat to provide you with energy.

Most of these methods are known as ketogenic diets.[6]

PSMF is a variation of that type of routine that uses a minimum amount of protein to keep your body from wasting away while you eat very few calories. Your calories are restricted so heavily because your body must draw upon your stores of fat for energy. Adding more than a handful of carbohydrates to your diet or boosting your protein too high would only decrease this diet’s effectiveness because it would use those calories and food for energy, not the fat in your body. [7]

Most of the time, a PSMF routine is given to people who are either severely obese or who have problems with excessive insulin.

It is a very restrictive diet that is designed as a method for shockingly fast weight loss and is often done in a clinical environment.

That said, it is possible to follow this routine on your own, as long as you follow the specific advice outlined below.

[8] [9][10]

Therefore, it is essential to understand how much weight you can expect to lose on this diet and what kinds of foods you are allowed to eat.

This type of diet provides for minimal variation or deviation from its typical expectations, which means you have to be very dedicated and careful with it to ensure that you don’t make any serious mistakes while following this routine.

Setting up a proper meal plan is very important in this diet and will be key to your long-term success.

If you are looking for more detailed information about the Psmf Diet, I have a PSMF Diet Guide to assist you in getting you on your way to success.


The PSMF DietIf your ready to get started right away and want a full understanding of how to succeed with a PSMF Diet, be sure to get “The Complete Guide to the PSMF Diet.” The book gives my easy to follow plan, and all the necessary tools for healthy long-term success.



Weight Loss Expectations With PSMF – Protein Sparing Modified Fast

psmf diet before and after

Weight loss while on PSMF can be quite high.

For example, one study took a look at a variety of weight-loss protocols and found that a restrictive PSMF diet naturally increases your metabolism and makes it easier for you to lose weight.

They didn’t discuss the exact losses that they found, unfortunately, but other studies have taken a look at this amount and found very positive results. [11]


For example, one study took a look at a variety of different individuals and used a protein-sparing modified fast to help them lose weight. Each person in the study had a baseline weight of about 310-350 pounds.

These individuals were considered obese by a variety of health standards and had an average BMI of about 62.8 percent, meaning that nearly two-thirds of their body weight came from fat. [12]

This problem was a significant one because a high BMI is tied to a lot of common health problems. For example, people with high BMI ratings can expect a higher risk of cardiovascular health issues. They can also anticipate a higher risk of cancer and other hazardous health concerns. So the idea behind the study was to see not only how much weight a person lost while on PSMF but how much their BMI decreased.

A heavier decrease in weight is more beneficial than a smaller one, according to most studies. [13]  [14]

During this period of the study, it was found that the average individual on PSMF had decreased their weight by about 20-30 pounds. So those on the lower end (310 pounds) dropped to 280 pounds while those on the higher end (350 pounds) were potentially dropping as low as 320 pounds.

That kind of significant weight loss was very beneficial for their overall health, mainly since it occurred in a matter of weeks. [15]

And when it came to the BMI decrease, the results were even better. The average person in the study dropped to a BMI of about 49 percent. While this is still higher than usual, it is a quick and healthy improvement.

These types of losses are pretty typical for those who are on a PSMF diet, though you can achieve higher losses if you stay on a diet for a more extended period. [16]

The Calories and Macronutrients of a PSMF Routine

calories on the psmf diet

There are a few different stages of the PSMF diet.

Each of these stages has a specific amount of calories that can be calculated using my PSMF Calculator.

In this section, I’ll only discuss the intensive phase.

Later on, I’ll go into more detail on the refeeding phase and why it is so important.

In the intensive phase, calories are almost always restricted to no more than 1,000.

It may be as low as 800 calories.

During this phase, you’ll get most of these calories from protein, the primary macronutrient that you will eat during a PSMF diet.

For those who have never heard of them, macronutrients are the primary building blocks of your body and the main ingredients for a healthy life. For example, carbohydrates, protein, and fat are the most important of these nutrients.

Carbs provide you with most of your energy, protein supports your muscle health, and fat provides you with an intense source of energy that can be stored (in your fat cells) when it isn’t needed and then get used in case of an emergency. [17]

Most diets will balance your intake of carbs, fats, and proteins in a variety of ways. For example, most people likely eat a carb-heavy routine that also utilizes some protein. Fat is likely to be minimized, though this isn’t always a wise decision.

That’s because certain types of fats are very healthy and can provide you with real benefits that you can’t get from any other kind of macronutrient. [18]

However, the uniquely-intense nature of the PSMF diet means that you will eat almost no carbs or fat. Instead, you will focus on small amounts of protein. As mentioned previously, the protein you eat is designed to minimize your muscle loss. In most cases, you’ll be eating about 1.2-1.5 grams of protein per kilogram of your body weight. So if you are 81 kilograms or 180 pounds, you would eat just 97.2 to 121.5 grams of lean protein every day. Your carbs are limited to less than 20 grams per day (or about two slices of bread), and your fat is limited to whatever you get from the lean protein.

Following this routine will allow a person’s body to go into lipolysis, meaning that they will lose adipose tissue and start producing ketones. As a result, you are going to drop a significant amount of water weight in your first week or two of PSMF.

However, you can anticipate a loss of between 1.5-2.0 kilograms (or 3-6 pounds) every week after you start this diet. [19]

What You Eat on PSMF Diet

what to eat on a protein sparing modified fast diet

Eating on a PSMF diet is going to be limited.

That’s because you are limited to tiny servings of just a handful of different food types.

For example, most of the food you eat is going to be available in just 25-50 calorie amounts.

This does increase the potential foods that you can eat in a day but can minimize your enjoyment.

However, there are still several foods that you can eat when losing weight on PSMF. [20]

Typical foods you eat on a PSMF routine include:

  • Fish – Haddock, sole, flounder, or cod
  • Shellfish – Shrimp, lobster, clams, or scallops: eat sparingly
  • Cottage Cheese – Non-fat or low-fat
  • Eggs – White-only eggs
  • Poultry – Skinless chicken or turkey
  • Organs – Liver and very small amounts of kidney
  • Cheese – Fat-free types with limited sodium
  • Ground Chicken or Pork – Well-trimmed and minimal fat
  • Lamb – Lean cuts only
  • Water – Unlimited amounts
  • Broth or Bouillon – Only use if you suffer from lightheadedness

These are just a few of the foods that you can eat while on a PSMF routine.

There are also many foods that you should avoid, including:

foods to avoid on a psmf diet
  • All fatty meats
  • Soda and tonics
  • Fruit juices
  • Milk
  • Sports drinks
  • Artificial sweeteners, such as sucrose, fructose, or corn syrup
  • Cheese that isn’t fat free
  • Processed meats, such as prime rib, sausage, hot dog, bologna, salami, pepperoni, spare ribs, or kielbasa
  • More than three fruits or high-carb vegetables
  • Most types of bread

The severe restrictions of a PSMF diet do vary during certain phases of your diet. For example, the intensive phase will mostly limit you to lean meats, egg whites, poultry, and fish and seafood. You can also eat low-carbohydrate veggies, such as asparagus, broccoli, cauliflower, carrots, lettuce, mushrooms, and zucchini. In the refeed stages, which I’ll discuss later, your diet will expand to make PSMF easier to handle for extended periods.

Anyone who is on a PSMF diet needs to make sure that they find high-quality and tasty snacks that keep them from getting too bored. Thankfully, it is possible to tweak a variety of different recipes to create dishes that keep you excited and entertained by PSMF. While it isn’t going to be easy to stick to this routine, finding foods and meals that you love will prevent you from getting too fatigued.

The History of PSMF

history of psmf diet

The PSMF started in the 1970s and was developed as a way of helping obese people lose weight.

This purpose has remained the same over the years but has adapted to include diabetes. [21] [22]

That change in its focus was due to the fact that PSMF has a substantial impact on the nitrogen retention in your body. A healthy PSMF routine has been shown to improve your nitrogen balance in your muscles, which makes it easier for you to avoid muscle loss when fasting.

Just as importantly, this benefit helps those with diabetes by reducing their weight and decreasing the severity of their symptoms.

These advantages were noticed as early as 1976 in a variety of different studies. [23]

Beyond this study, there has been a large number of other examinations that have helped to expand the range of PSMF and increase our understanding of its benefits. I have already included links to quite a large number of studies throughout this page. However, there are even more studies that you should understand to help increase your overall grasp of the ways that PSMF affects your body.

Research Results on the Protein-Sparing Modified Fast Method

psmf diet weigh loss results

The many research studies that have gone into examining PSMF have focused heavily on a multitude of concepts.

For example, there was a study that examined how well it worked for adult obesity.

It found that it was a beneficial way of burning a large amount of fat off of a person’s body.

In fact, they noted that it had become the standard method for treating obesity at the Cleveland Clinic, a facility that will be discussed in more depth later. [24]

In another study, the examination of short-term weight loss with PSMF was confirmed, with the specialists saying that this weight loss was “rapid and significant.” They also found that it caused a variety of short-term changes beneficial for a multitude of health issues.

These included improved cholesterol and a range of other benefits. However, they were also quick to point out that the long-term efficacy of this method of weight loss was less certain than its immediate effects. [25]

In another study, the benefits of PSMF on the preoperative health of obese patients were carefully studied. It was found that following this dietary method for at least two weeks before an operation improved a patient’s success rate and made the surgery more effective.

This study was small scale, however, and further examinations of its results or replication of them have yet to be examined. [26]

Other studies have attempted to gauge the benefits of this weight-control method on adolescents. In one study, it was found that a short-term intervention routine of 10 weeks of PSMF was beneficial as a way of helping obese children manage their excessive weight.

However, the study concluded by stating that long-term treatment with it could not be recommended because of a lack of studies on the subject. [27]

Another study took a look at how protein broke down in people on a complete fast versus those on a protein-sparing modified fast. They found that a person on a total fast had a decreased balance of protein in her body and skeleton. This problem could result in muscle and even bone-density loss. By contrast, they found that those on a PSMF routine experienced no loss of protein or only a minimal decrease. As a result, they believed it was a better method for obesity control than a total fast. [28]

A common theme that popped up throughout these studies was a concern over the lack of knowledge on long-term results. Many specialists were worried that this lack of information could cause a person to go on a PSMF routine when it wasn’t right for their needs. As a result, it is critical to know what kind of individual should try out the PSMF routine and who should pass on trying it out.

Those Who Should Go on a PSMF Routine

psmf diet recommended meal plan

The difficulty of maintaining a PSMF diet means that it should only be done if you fall under certain headings.

For example, people who are trying to lose a few extra pounds might not find this is the best diet for them.

That’s because it is designed more for people with severe obesity.

While it would likely burn a few pounds off of your body, there are other less severe ways to lose weight. [29]

In fact, most facilities that perform a PSMF diet only do it as part of a prescribed weight-loss method. For example, the Cleveland Clinic states that it is a beneficial way to burn a lot of fat off of a person’s body in a short period while not affecting their muscle mass.

Individuals who are dangerously obese and who need to lose weight often go to a clinic to go through this type of treatment or get at-home dietary suggestions from experts like the Cleveland Clinic. [30]

The reason for this limited use is that PSMF requires a careful balance that can be easily upset if you don’t follow each step correctly. That said, you can do PSMF at home if you are dedicated and skilled enough. Utilizing this method will require careful planning of each of your meals, only eating what is needed for muscle maintenance, and regularly talking to your doctor to ensure you don’t overdo it.

That said, the use of a PSMF diet is incredibly beneficial for those who have problems like type 2 diabetes, sleep apnea, arthritis problems, fatty liver disease, or high blood pressure. All of these benefits occur because of the ways that you lose weight quickly and efficiently.

People who are sedentary or who have a hard time moving due to obesity often get excellent results from this particular diet. [31]

In fact, fatty liver disease is particularly important to manage when it occurs. That’s because it can cause a multitude of health complications and may even shorten your lifespan. As a result, the many benefits that PSMF provides in treating this disease make it something to consider seriously.

As always, though, it is essential to talk to your doctor before assuming that PSMF is safe for you. [32]

These safety concerns shouldn’t scare away anybody who is interested in PSMF for managing severe obesity. It is a safe diet method when it is, and proper care minimizes its risks. That’s because, while the side effects can be reduced with careful attention, there are still a few problems that could occur if you aren’t careful enough with your routine.

Please pay attention to the following section to learn about what might happen to you if you aren’t careful with your dietary method.

The Risk of Side Effects on PSMF

side effects of the protein sparing modified fast

Anybody going on a fasting diet knows that it can be a difficult-to-maintain dietary proposition.

That’s because it requires you to cut out a majority of your daily calories and carefully control what you do eat.

For most people, this is going to be a real challenge.

Even worse, there are many types of side effects and even adverse reactions that you have to take into account when going on this type of diet. [33]

For example, you are going to go through a period of adjustment when you start that will throw your body into a loop. That’s because you are cutting out a lot of carbohydrates and forcing your body to adapt to this change. Many of these side effects are similar to those that you get from a keto diet.

That’s because PSMF shares the low-carbohydrate approach familiar with all ketogenic diets. [34]

In many cases, you are going to suffer from a myriad of side effects, including:

  • Severe headaches
  • Lack of energy
  • Hypotension or low blood pressure
  • Halitosis or bad breath
  • Diarrhea
  • Constipation
  • Cramps
  • Trouble tolerating heat
  • Sudden coldness
  • Changes in menstrual cycle
  • Temporary loss of hair
  • Anxiety
  • Depression

In almost every case, these side effects are temporary and go away after your body adjusts to the diet. As a result, it was often more comfortable for individuals to maintain this routine than they had initially anticipated. That said, others were likely to suffer from hunger pangs, sudden cravings for carbohydrates, and even lightheadedness. The latter situation is particularly prevalent in the early stages of this diet.

The intense nature of this diet also means that undernourishment is a real probability. Thankfully, you will be taking supplements while on this diet. That said, there is still a chance that you might miss out on many vitamins and minerals.

This problem may cause a complication in your symptoms or cause other side effects, such as stunted growth, problems with your teeth, and more. [35]

Even those in a clinical setting should anticipate some possible side effects. That’s because many on PSMF in a medical situation are fed using a hose and a pump. In this situation, a person is likely to feel hungry all the time and may struggle to control their appetite.

They may also experience complications with their pump, including operation failure and even infection around the pumping site. [36]

These side effects are usually quite minor and easy to manage with careful treatment. Just as importantly, they are easily outweighed by the possible advantages of this treatment method. In fact, those who are dangerously obese or who are suffering through type 2 diabetes easily get more benefits than they do downsides when trying out this weight loss method.

The Many Benefits of PSMF

benefits of the psmf diet

Thankfully, there are many benefits common with people who go through a PSMF routine.

Each of these benefits is due to the fact that PSMF is a VLCD or a very-low-calorie diet.

This type of diet focuses on severe caloric restriction and focusing your food intake on just a handful of macronutrients such as, in this case, protein. [37]

So if you are interested in a protein-sparing modified fast diet, it is essential to examine its many benefits in greater detail. The following section will discuss each of the most beneficial elements of this diet and explore why they are so important. Each will also include a link to a study that showcases why these benefits are so crucial for your overall health.

Fast Weight Loss Without Muscle Loss

A VLCD is one of the fastest and most effective ways to lose weight. The same is true of PSMF. However, it is more beneficial than other types of extreme diets because it provides you with the protein you need to avoid muscle loss. Even worse, is the fact that many low-calorie diets often cause a person to suffer from some type of undernourishment. Thankfully, the protein content of PSMF ensures that you are happy and healthy and that your muscles remain strong.

Decreased Blood Glucose Levels

Blood glucose or blood sugar is a problem that affects a large number of people. Usually, people on a high-carbohydrate diet have higher levels that make them antsy, edgy, and emotionally difficult. Thankfully, a PSMF routine can decrease your blood sugar and keep you more balanced and free of anxiety. Just as important, it can prevent the massive release of insulin throughout your body.

This benefit ensures that your diet is more effective by eliminating the fat-burning restrictions imposed on your body by insulin. [38]

Improved Insulin Resistance

People who eat heavy amounts of carbohydrates often suffer from what is known as insulin resistance. This problem can contribute to the development of health complications, like type 2 diabetes. Thankfully, PSMF will improve your insulin resistance and make your body less sensitive to it.

Just as importantly, it will decrease the amount of insulin in your body, thereby making it easier for you to burn fat and lose weight quickly. [39]

Better Cholesterol Levels

Poor cholesterol is a problem that impacts a large number of people around the world. Balancing your cholesterol requires minimizing your bad type and improving your good. One of the quickest ways to do that is through the use of PSMF. This diet will naturally promote better cholesterol and improve your heart health. In this way, you can minimize your risk of serious heart attacks, strokes, and other cardiovascular dangers.

Lower Blood Pressure

High blood pressure is a serious problem that can affect a large number of people and seriously deteriorate their health. Thankfully, a PSMF diet can decrease your blood pressure quickly and efficiently.

It does this by not only helping you lose weight but by breaking apart the plaque buildup in your blood vessels that increases your blood pressure and which put increased stress on your heart and your overall cardiovascular system. [40]

Necessary Supplements

The long-term use of PSMF requires the use of a variety of supplements. These supplements are designed to provide your body with the vitamins and minerals that you won’t receive while you are following this routine.

It is true that you can take these supplements while on a short-term routine. However, it isn’t as necessary as it is on a long-term one. [41]

The following sections will provide you with the insight you need into choosing the best supplements for your needs. That said, it isn’t necessary to take a few of these supplements during the refeeding phase, which I will discuss in more depth later. For now, just know that these supplements are necessary whenever you are in the intensive period of a PSMF routine.

Multivitamin Tablet

As you are greatly restricting the kinds of foods that you can eat, you need to make sure that you take a multivitamin supplement. The exact level doesn’t matter that much. It should just be high enough to ensure that you get your daily mineral and vitamin requirements.

Check the label to make sure that it is as high as you can get and then adjust your intake to ensure you get all of the vitamins and minerals necessary. [42]


Though you can eat many potassium-rich foods when you aren’t on a PSMF routine (and even during your refeeding phase), you are going to need a supplement of at least 16-20 mEq every day when one this diet. This level should give you more than enough to not only improve your overall health but to also boost your fat-burning capabilities.


Calcium is essential for your bone and organ tissue health. When on a PSMF diet, you are going to have a minimal amount every day. As a result, it is a wise choice to purchase a 1,000-1,200 mg supplement to take every day.

In this way, you can support your bone health, avoid osteoporosis, and increase the efficiency of your diet all at the same time. [43]


Magnesium is another essential vitamin that you aren’t going to get enough of while on a PSMF routine. Without it, your diet is going to suffer, and your body will be weaker and less able to function. As a result, a good 400-500 mg daily supplement is a great decision. And while it is possible to find a multivitamin that includes the items mentioned above in a small amount, it is a good idea to take a supplement anyway.


In most weight-loss cases, you are going to want to minimize your intake of sodium to avoid retaining water. However, this is only necessary if you are on a standard diet. Unfortunately, those on a PSMF routine are likely to experience sodium deficiencies. This problem is a major one because sodium is an important electrolyte and an imbalance can be dangerous.

Thankfully, a 1,500-2,000 mg daily supplement should prevent this from becoming a serious issue. [44]

Fish Oil

Few people get enough fish oil in their diet, which is a major issue for a lot of individuals. That’s because fish oil is an excellent source of healthy fats. As your diet is going to minimize your intake of fats, you should take a supplement of at least 200-300 mg of fish oil every day.

Try to take fish oil with a meal, as this increases its potency and makes it easier for your body to absorb it. [45]


While you will be perfectly healthy eating nothing but protein during a PSMF diet, your food intake will be very low on fiber. This item is necessary for controlling your bowel movements and ensuring that you don’t get constipated. Take at least 2-5 fiber pills every day to boost your digestive health.

You can slowly add more to your diet, though taking too much at once can cause cramps and diarrhea. [46]

Will a PSMF Diet Cause Ketosis?

does a psmf cause ketosis

Image Source

I’ve already mentioned, several times, that a PSMF diet is very similar to a ketogenic diet. In fact, it is a keto diet in its essence and will cause many of the same effects. Key among these effects is the production of ketones. These are chemicals that your liver produces when you are on a low-carbohydrate diet. Their development occurs when you don’t eat sugar, and your body needs energy. After they are formed, they go into effect to break down fat in your body.

Ketones not only help you lose fat but provide you with an increase in energy that makes it easier for you to exercise. Just as importantly, they have also been shown to suppress your appetite. This benefit is huge for somebody who is on a PSMF routine.

Even though you won’t be eating as much as usual, you won’t have cravings that are as intense as they would be on another type of diet. [47]

The ketones produced during ketosis also have a significant effect on your blood cholesterol, both the good and the bad levels. I’ve already talked about this effect in the sections above. As a result, I won’t dwell on it here. However, it is worth knowing that your decrease in triglycerides (harmful cholesterol) decreases more with each passing week while your positive ones increase.

As a result, your cholesterol levels are going to improve significantly, and you’ll be a healthier person. [48]

Even better, the ketones you produce during a PSMF diet also improve your cardiovascular health in a multitude of ways. While this benefit is partially due to decreased cholesterol levels, it also occurs for other reasons.

That’s why a PSMF diet is such a benefit for so many people. While it isn’t quite right for everybody, the benefits that it provides to the right individuals are significant and worth exploring. [49]

And while many of these benefits are shared with all ketogenic diets, they are often more pronounced with PSMF. That’s because this diet is stricter and limits your intake of fat. As a result, your body isn’t fighting with a new supply of fat but is burning only that which is on your body. This side effect will result in a substantial increase in healthy effects and an overall healthier state of mind.

Exercising on a PSMF – Protein Sparing Modified Fast Diet

exercising on a psmf dietMany people who begin this fast do not exercise at all. In fact, exercise is restricted or limited or else calories need to be adjusted upward to make sure that the individual retains their lean muscle mass.

How much exercise do you have to do?

Once you move to the sustainable diet, it would be best to complete mild to moderate exercise for your overall health.

There are many frequently asked questions before starting this plan and this is understandable.  We wouldn’t advise you to start any diet until you have a clear understanding of it.

Why Refeeds are So Critical

A refeed is a period during a PSMF diet when you are allowed to eat a higher level of carbohydrates than normal. In a long-term PSMF routine, these periods last anywhere from 3-6 weeks. Studies have shown that these refeeding periods are critical for maintaining long-term weight loss success when using PSMF.

That’s why it is so important for you to understand just how they work. [50]

Refeed periods are critical for a variety of reasons. First of all, they help to deal with any issues you might be having with hunger pangs. People on a PSMF diet are going to adjust to their lower caloric intake but may still feel hungry from time to time. A refeed period introduces some carbohydrates back into your body to improve your hunger pangs and to make sure you aren’t suffering.

Beyond these benefits, a PSMF refeed also helps to restore essential chemical balances in your body. After a certain period without carbohydrates, your muscles will start losing glycogen. That’s because this hormone is produced only when you are eating carbs. By going through a refeed, you help your body restart your production of this vital hormone and avoid adverse side effects.

This issue is particularly problematic because this glycogen is a critical fuel for your exercising habit. It is stored in your liver and your muscles and goes into effect when you exercise. When you start running out of glycogen, you are going to feel more sluggish and will struggle to keep up with your exercise. Even worse, it can affect your normal day-to-day energy levels.

A good refeed should include a calorie intake increase of at least 30 percent. So if you are eating 800 calories every day, you would consume 1,040 calories during your refeed. Or if you were eating 1,000, you would jump up to about 1,300 calories or so. The exact amount will vary, but you should make sure to include foods like pasta, potatoes, fruits, starchy vegetables, pancakes, and high-fiber bread to refuel your body and increase success on the PSMF path.

Before you jump head-first into the world of PSMF, it is essential to understand a few simple steps that you can take to ensure you don’t make any mistakes.

These steps are things that anybody should do before starting a ketogenic diet of any kind. However, they are particularly crucial for those who plan on doing PSMF due to the universe strictness of this diet.

Things to Do Before Starting PSMF

Psmf getting started steps

When starting out on a PSMF diet, it is critical to make sure that you take multiple preparatory steps and tips. Failing to properly prepare for this process practically guarantees its failure. The following section is an examination of all of the steps you need to take before starting your diet.

Create Realistic Expectations

You can lose a lot of weight when on a PSMF routine. However, you need to make sure that you set realistic goals and objectives. For example, you can’t expect to drop 50-100 pounds in a few months. Setting unrealistic goals for weight loss almost guarantees failure.

As a result, you need to choose goals that are realistically within your abilities. While it is possible to drop 100 pounds on PSMF, you need to make sure that you take small steps to get there.

Aim for 10, 20, or even 30 pounds. Aiming high is often a good step because it keeps you focused but going too high is often discouraging if your progress is slow. [51]

Design Healthy Meal Plans

A PSMF routine requires fully planning all of your meals well in advance. This step helps to improve your success by making it easier for you to pick out the foods that you want to eat.

Just as importantly, it makes it easier for you to stick to your routine by choosing foods that are right for you. [52]

If you aren’t sure where to begin, start buying some lean meats that you enjoy eating. Remember to purchase low-carbohydrate foods that you can also consume on the side. Don’t hesitate to check out a few high-quality recipe books to get a better idea of the kind of meal plans that work for you on PSMF.

Other Steps to Take

Now that you’ve planned those two steps, it is important to perform a few others, including the following:

  • Talk to your doctor to learn more about this type of diet
  • Create a healthy protein and carbohydrate balance with your doctor
  • Buy your supplements ahead of time to ensure you get them right
  • Take “before” photos to give yourself a guide to your weight loss
  • Purchase measuring equipment to simplify your cooking and food preparation
  • Plan out your refeed periods to keep your glycogen levels sae
  • Find a support group of others also going through this diet
  • Know how to leave this diet safely by slowly increasing your calorie intake

These simple steps are all a critical way of ensuring that you have a successful PSMF routine.

And now that you better understand these preparation steps, it is time to take a look at the Cleveland Clinic study that showed just how beneficial a protein-sparing modified fast could be for those who are attempting to achieve long-term weight loss success.

The Cleveland Clinic Study On PSMF

The Cleveland Clinic has been using the PSMF diet for years as a way of helping its patients lose weight safely. They recently did a study to see how well that long-term success could be maintained on this diet. They started by following 175 adults over a two-year period. Of these adults, 127 were on PSMF while 48 were on a conventional diet. When the study was over, Dr. Sangeeta Kashyap of the Cleveland Clinic’s Department of Endocrinology was delighted. She stated that the results indicated that the PSMF diet could be “an effective and safe method” when used in an outpatient setting.

She believed that it was a great way to help people lose weight for the long term, not just for immediate results. [53]

The results that they found when compared to the control group were quite startling. The weight loss experienced by the PSMF group was about 12.4 percent over a two year period. This loss compared favorably to the control group, who had a weight loss of just 2.6 percent. That means that PSMF was nearly six times more useful as a weight loss tool than more conventional diets. While this is just one study, it is a very positive result that shows PSMF could be used by a large number of people in any number of circumstances.

And since it was done just last year, it could serve as an inspiration for other long-term studies into this practice. [54]

Psmf Diet Step-by-Step Beginners Guide to the Protein Sparing Modified Fast

Hi! I’m Elizabeth! I’m the founder of PsmfDiet.com.

After losing over 110+pounds with a protein sparing modified fast,  I understand every phase of the Psmf Diet, from the thrill of losing your first ten pounds to the ever-growing confidence you feel as you approach your goal weight. I get it – and I back it up with my own experience.

You’re not the only one who wants you to succeed. I am committed to helping you meet your weight loss goals.

It takes motivation to lose weight. I can help you fuel your drive with my personalized resources available anytime, anywhere.

I wrote the Step by Step Beginners Guide to the Protein Sparing Modified Fast to show you exactly how you can lose weight fast in an easy to follow way.

I hold a Masters Degree as a Clinical Nurse Leader as well as a degree in Biology.

Make the most of PsmfDiet.com’s weight loss tools and resources and you will see the results –inside and out.  You’ll be more confident and have a brighter outlook. Let’s transform your life together!

Share your thoughts in the comments below!


[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4784653/

[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1646394/

[3] https://www.mdedge.com/ccjm/article/96116/diabetes/protein-sparing-modified-fast-obese-patients-type-2-diabetes-what-expect

[4] http://www.sciencemag.org/news/2017/02/five-day-fasting-diet-could-fight-disease-slow-aging

[5] https://www.ncbi.nlm.nih.gov/pubmed/17924864

[6] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1490021/

[7] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3775123/

[8] http://journals.sagepub.com/doi/pdf/10.1177/2333794X15623245

[9] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3703161/

[10] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1373635/

[11] https://www.ncbi.nlm.nih.gov/pubmed/15941879

[12] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4784653/#section4-2333794X15623245title

[13] https://journals.lww.com/nutritiontodayonline/Fulltext/2015/05000/Body_Mass_Index__Obesity,_BMI,_and_Health_A.5.aspx

[14] https://www.sciencedaily.com/releases/2018/08/180814103251.htm

[15] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2763382/

[16] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2903861/

[17] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3735822/

[18] https://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good

[19] https://pdfs.semanticscholar.org/6438/e58f58f89e7dbb7ff744b6e7f9a5ebb9048b.pdf

[20] https://www.holisticmd.org/wp-content/uploads/2010/12/ProteinSparingModifiedFast.pdf

[21] https://www.mdedge.com/ccjm/article/96116/diabetes/protein-sparing-modified-fast-obese-patients-type-2-diabetes-what-expect

[22] https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-7-88

[23] http://diabetes.diabetesjournals.org/content/25/6/494

[24] https://clinicaltrials.gov/ct2/show/NCT02174783

[25] https://www.inesss.qc.ca/fileadmin/doc/AETMIS/Rapports/Obesite/2010_03_res_en.pdf

[26] https://www.ncbi.nlm.nih.gov/pubmed/10765160

[27] https://www.andeal.org/template.cfm?key=416

[28] https://www.metabolismjournal.com/article/0026-0495(80)90085-2/abstract

[29] http://journals.sagepub.com/doi/full/10.1177/1941406415596342

[30] https://my.clevelandclinic.org/ccf/media/files/Nutrition/Weight_loss_options_11544.pdf

[31] http://journals.sagepub.com/doi/pdf/10.1177/1941406415596342

[32] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3732059/

[33] https://www.medicalnewstoday.com/articles/295914.php

[34] https://www.healthline.com/health-news/worst-side-effects-of-the-keto-diet

[35] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3137999/

[36] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3764321/

[37] https://www.researchgate.net/publication/12551683_A_Clinical_Study_of_Protein_Sparing_Modified_Fast_PSMF_Administered_Preoperatively_to_Morbidly_Obese_Patients_comparison_of_PSMF_with_natural_food_products_to_originally_prepared_PSMF

[38] https://www.healthline.com/health/low-blood-sugar-effects-on-body

[39] https://emedicine.medscape.com/article/122501-clinical

[40] https://www.nytimes.com/2015/11/10/health/data-on-benefits-of-lower-blood-pressure-brings-clarity-for-doctors-and-patients.html

[41] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4784653/

[42] https://www.webmd.com/diet/features/what-vitamin-should-i-take

[43] https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/calcium-supplements/art-20047097

[44] http://cancer.unm.edu/cancer/cancer-info/cancer-treatment/side-effects-of-cancer-treatment/less-common-side-effects/blood-test-abnormalities/electrolyte-imbalance/

[44] https://www.organicfacts.net/health-benefits/minerals/sodium.html

[45] www.webmd.com/hypertension-high-blood-pressure/guide/omega-3-fish-oil-supplements-for-high-blood-pressure

[46] https://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/fiber-supplements/faq-20058513

[47] https://www.ncbi.nlm.nih.gov/pubmed/18175736

[48] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716748/

[49] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5452247/

[50] https://www.ncbi.nlm.nih.gov/pubmed/28225305

[51] https://www.mayoclinic.org/healthy-lifestyle/weight-loss/in-depth/weight-loss/art-20048224

[52] https://www.webmd.com/food-recipes/guide/grocery-list

[53] https://my.clevelandclinic.org/staff/5162-sangeeta-kashyap?_ga=2.81919510.1695142928.1534520942-839365605.1533955766

[54] https://www.aace.com/publications/endocrine-practice