The Fast Metabolism Diet Reviewed: What Is It and How To Get On It

These days it seems like most diet plans require you to starve yourself to death to shed some pounds permanently. Luckily, in recent years, a deeper understanding of what causes us to gain fat allows for diet plans that do not sacrifice your health for weight loss.

Now there are plenty of health plans that put nutritious dishes at the forefront of their projects. The Fast Metabolism plan by author Haylie Pomroy is one such plan that promises you will never (again) get hungry while on a diet.

But is this claim only another false celebrity diet promise? Or does the diet actually have merit when it comes to losing weight and keeping it off for good?

In this review of The Fast Metabolism Diet, we will get to the bottom of whether or not the plan works for the average person.

But first, let us take a closer look at what the diet actually entails.

What is The Fast Metabolism Diet?

The Fast Metabolism Diet is a book and diet plan created by celebrity nutritionist Haylie Pomroy. The book claims that it can help individuals lose around 20 pounds in 28 days.

The premise of The Fast Metabolism Diet is that you can essentially trick your body to boost its metabolism by eating certain food groups at certain times of the week. During the metabolism boost, your body burns calories in excess like there’s no tomorrow.

The Fast Metabolism Diet Does It Work

The book provides you with a weekly meal plan with the selected food you can eat. It comes with some rules like you must eat five times every day. You also must eat within thirty minutes of waking up and continue every three to four hours, except when you fall asleep.

It also encourages you to work out around two to three times per week. If you do not lose the twenty pounds within twenty-eight days, then the book helps you to repeat the four-week diet cycle.

Once you get the weight off, then you can keep it off by following the diet plan one week every month, or for four weeks every six months. So how does the diet break down its four-week cycle? There are three phases in the plan which make up one week.

You repeat these phases for the four weeks you are on the diet plan. The first phase wants you to reduce stress and focus on high-carb dishes and high glycemic fruit while avoiding unnecessary fat. It takes place on Monday and Tuesday.

Dishes include things like whole grain pasta, pineapple, pears, whole grain rice, oatmeal, mango, and cantaloupe. They also add some lean proteins that contain high amounts of vitamin B, and vitamin C. Lean beef, turkey, and lentils help keep you full during the day.

Workouts for this week focus cardio. The second phase of the diet asks you to move away from these high-carb foods and into high protein dishes.

It takes place on Wednesday and Thursday. It includes things like broccoli, beef, turkey, lean chicken, spinach, cabbage, collard greens, bison, and fish.

The book claims that these types of foods let your body release toxins from your blood, which helps your body burn stored fat. The final phase lasts from Friday to Sunday. This part of the stage cuts back on the protein and carb intake while ramping up the healthy fat intake.

Foods include things like eggs, olive oil, coconut oil, nuts, avocados, and seeds. It also encourages dishes like lobster and shrimp since allegedly these foods help stimulate your thyroid gland.


During the entire diet, it encourages you to avoid things like alcohol, refined sugar, soy, dairy, corn, and caffeine.

The Fast Metabolism Diet Product Specifications

holding magnifying glass

Now that we know more about the basic premise of The Fast Metabolism Diet booklet, we’ll look closer into product specifications.

The author of the book is Haylie Pomroy — a celebrity nutritionist and wellness consultant.

The Fast Metabolism Diet is 272 pages long and comes with fifty different recipes and four weeks of meal planning.

You can purchase three different versions of the book: paperback, hardback, digital, and audio versions.

For people with diet restrictions, there are organic, vegetarian, and vegan options.

Harmony Books published the work, and the ISBN is 9780307986276.

Finally, the product dimension of the book is six in half inches by one inch by nine in half inches.

Spec Table


Included recipes

Weeks of the meal plan

Page count


Haylie Pomroy






Versions available

Organic, vegetarian, and vegan options?

Product dimension


Paperback, hardback, and audiobook


6.5 ” x 1 ” x 9.5 “

Where Can You Purchase The Fast Metabolism Diet?

You can find the Fast Metabolism Diet book at most online retailers when shopping on the internet. We recommend sites like Amazon or eBay since you can purchase both new and used versions.

Alternatively, you can also purchase the book from the author Haylie Pomroy’s website. In-person, you can find the Fast Metabolism Diet in most nationwide booksellers, like Barnes & Noble and Book-A-Million.

How The Fast Metabolism Diet Compares with Other Diet Books

In this section, we compare The Fast Metabolism Diet with other popular diet books. Specifically, we compare it with “Simply Keto: A Practical Approach to Health & Weight Loss” and “The Obesity Code: Unlocking the Secrets of Weight Loss”.

We make these comparisons because they help identify some of the strengths and weaknesses associated with Pomroy’s diet methods.

They also present some practical alternatives for people who think The Fast Metabolism Diet is not for them.

Simply Keto: A Practical Approach to Health & Weight Loss

The Simply Keto: A Practical Approach to Health & Weight Loss by Suzanna Ryan focuses less on strict weekly and monthly meal plans and more on the specific foods you eat. It cuts down on foods that contain lots of carbohydrates and focuses instead on high-fat foods.

This part includes things like meat, cheese, and eggs. The plus side of this diet is that you can eat fatty foods that keep you full. You can also cycle in and out of the keto diet whenever you want. You can read more on the keto diet on our blog here.

Simply Keto book

However, when you are on a diet, you must follow a strict dietary guideline that might seem extreme for some people.

It also places incredibly strict limits on the number of carbohydrates you can eat, which might be hard for specific individuals when they try and eat out or with friends.

However, The Simply Keto: A Practical Approach to Health & Weight Loss book offers a tasty amount of recipes and advice on how to navigate the ups and downs of the diet.

The Obesity Code: Unlocking the Secrets of Weight Loss

The Obesity Code: Unlocking the Secrets of Weight Loss by Dr. Jason Fung focuses on what he believes is the root of all unhealthy weight gain: insulin.

Dr. Fung believes that foods with high amounts of glycemic causes our body to create large amounts of insulin.

obesity code

This insulin does two bad things: it creates an insatiable appetite for more food, and it causes fat to store. The book essentially suggests a less strict version of the Keto diet to combat the insulin production.

The Obesity Code: Unlocking the Secrets of Weight Loss focuses on a diet with large amounts of healthy fats and low intake carbs. While it does give a lot of helpful advice and theories of the nature of weight loss, it does lack some things.

For example, it does not feature any meal plans or recipes. As such, you will likely need to buy it in unison with another book that features more concrete recipes. Alternatively, you can read the book and then search for recipes online.

However, people do claim to have great success following the guidelines set by The Obesity Code: Unlocking the Secrets of Weight Loss. Some fortunate souls lost an average of 20 to 50 pounds.

The Fast Metabolism Diet Pros and Cons

In this section, we will talk about some of the things we like about The Fast Metabolism Diet and some things we think it could do better. We include both our own opinions and user reviews, so we get a more objective view of the product.



Part of the reason that a lot of people claim to lose weight while on The Fast Metabolism Diet is that it does contain a lot of good advice. Eating whole, healthy foods that contain vitamins and fibers is scientifically linked to weight loss.

Also, the book does not claim that you will magically lose weight by merely eating differently. It encourages the importance of exercise in the weight loss process.

The diet also cuts out a lot of bad food that will only do you harm: things like sugar, alcohol, and caffeine.

Finally, The Fast Metabolism Diet also encourages the importance of hydration. Drinking lots of water can help you lose weight by decreasing your appetite, which then lets you eat less throughout the day.

  • Encourages you to eat whole organic foods
  • Cuts out unhealthy foods from your diet
  • Emphasizes hydration


While there is a lot to like about The Fast Metabolism Diet, there are also some drawbacks too. For one thing, entire sections (precisely the premise that you can hijack your body’s metabolism) are based entirely in the realm of pseudoscience.

This means that they are empty claims that hold no scientific evidence and are probably used to sell the book. The Fast Metabolism Diet also requires users to follow a strict diet plan that requires them to eat sometimes, even when they are not hungry.

Many critics believe this plan is unsustainable since it requires such intensive guidance. Finally, the last problem with the diet book is that it excludes some helpful foods from its list.

Things like caffeine and soy can actually bring some excellent health benefits with them, which the book ignores.

  • Science does not support the premise
  • Requires strict diet plan
  • Excludes some foods that may be beneficial

The Fast Metabolism Diet Review – Final Words

Like most diet plans, The Fast Metabolism Diet has received a lot of mixed reviews from the people who tried it. Some people experienced enormous success on the project, while others achieved nothing. We feel a similar way.

Parts of the diet follow a nutrition plan that is backed by plenty of scientific research. But, we believe it is important to note that quite a lot of the theories included with the book does not contain any scientific backing.

As such, we urge caution from putting your complete faith in the plan. However, this lack of scientific credibility does not mean that The Fast Metabolism Diet is worthless. The program contains a lot of good advice on eating healthy and exercising.


It also includes numerous recipes that can get you on the right track toward a more nutritious lifestyle. While the principles like increasing your body’s metabolism are not supported by science, eating healthy and working out is.

As such, we believe you cannot do any harm by following the advice of The Fast Metabolism Diet. Indeed it seems many people lost the right amount of weight on a diet and feel more energized as a result.

As such we give it a final rating of four stars out of five stars.

We hope this review of The Fast Metabolism Diet helped you decide on whether or not the product works for you. Good luck on your weight loss journey!

Featured Image via Pixabay

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