Is 3 Week Diet a Scam?

Want to lose weight in 21 days or less? Brian Flatt’s 3-Week Diet may just be the right solution for you. Imagine melting away 12-23 pounds of fat in less than a month using a foolproof, science-based system.

Is it possible? Let’s find out in our comprehensive review of this product.

IN SUMMARY Here Is What You’ll Discover in This Review:
  • What Is the 3-Week Diet by Brian Flatt?
  • Who Created the Course?
  • Thing You Have to Know Before You Buy His Course!
  • 4 Phases in Which This 3-Week Diet Works
  • Detailed List of Course Modules and Parts
  • Tricks and Techniques You Just Have to See!
  • Detailed Look at The Main eBook
  • 4 Pros vs. 2 Cons of This Program
  • Video USER FEEDBACK with Positive and Negative Reviews!
  • Further Resources That Will Help You!

4 Phases in Which This 3-Week Diet Works

Phase #1 – Detox Your Liver (Days 1-7)

The first phase is all about detoxing your liver; cleansing your body of all the toxins you’ve built up. The author, Brian Flatt, recommends taking vitamin A, C, and D supplements to maximize results.

These powerful vitamins increase insulin sensitivity and adrenal function to turn your body into a fat burning machine. You’ll also eat a ton of nourishing vegetables during this phase (17 different types to be exact) and lean protein.

The best part? Phase one lasts just seven days!

Phase #2 – Fasting for 24 Hours (Day 8)

Once you’ve cleansed your body, you can move onto phase two: one day fast. Fasting starts after your last meal on the 7th day of the program and lasts just 24 hours.

Keep in mind that a quick fast will give your digestive system a rest and it will cleanse any toxins you may have left in your body after the first phase.

Because your fasting begins before you will go to sleep, it is much easier to last 24 hours without any food.

Phase #3 – Fat Fast Diet (Days 9-11)

Phase 3 is the Fat Fast Diet phase. You’ll start this on the 9th day of the program. It lasts just three days, but you’ll use scientifically proven weight loss techniques that will kick-start your results.

What does phase 3 look like?

You’ll continue cleansing your liver and getting rid of those built-up toxins that are weighing you down – literally.

Thanks to this, you will start burning that stored fat in your belly and hips. For three days, you’ll eat a diet that consists of 80% calories from fat.

I know what you’re thinking – won’t that make me gain more weight?

No! In fact, this will start signaling your liver to start burning it for fuel. The outcomes? You burn even more body fat, and the pounds start melting off.

Phase #4 – Calorie Restriction Based on Your BMR (Days 12-21)

Phase four will last from day 12 to 21. For the next nine days, you’ll be eating a diet that’s designed for your own unique BMR and your weight loss goals.

What is BMR, you ask?

BMR stands for Basal Metabolic Rate. It measures your own unique metabolic rate. How does this rate benefit you?

Luckily, the your personal BMR lets you calculate exactly how many calories you need to consume to reach your goals. Don’t worry – Brian teaches you exactly how to calculate your own basal metabolic rate, so you can achieve the results you want.

Now you know how the program works, but what do you get when you buy it?

The Standard Package costs just $47.00 – reduced from $97 – and it comes with four PDF files to guide you through your weight loss journey.

Stuff You Will Get in the Standard Package

eBook #1 – Introduction Manual


This document does more than just introduce you to this diet. It includes all of the science behind this product and how we gain weight.

You’ll also learn the exact steps you need to take to finally get rid of that stubborn body fat for good. You’ll also find a handy list of recommended supplements to maximize your results.

These supplements aren’t required, but they’ll help you lose fat, increase your metabolism and give you that energy boost you need to get through the day.

eBook #2 – Diet Manual

The document is one of the most important (and valuable) manuals in the program. The information contained in this guide is priceless. You’ll learn how to determine your lean body mass versus fat percentage.

You’ll also gain access to a weight loss plan that’s designed for your own unique body type.

It tells you exactly what you need to eat every single day, so you’re never left guessing. Just follow the blueprint, and you’ll start seeing results. That’s not all the Diet Manual contains.

Keep in mind: You’ll also learn which foods to eat to burn even more fat and which foods you need to avoid at all costs.

eBook #3 – Workout Manual

The Diet Manual alone will help you reach your goals. The Workout Manual is just icing on the cake. And if you follow its workouts, you’ll double your outcome.

These workouts are for everyone – busy people who don’t have time for the gym, and people who live at the gym.

The best part?

You’ll only have to exercise 20 minutes a day, 3 to 4 times a week. These short, intense workouts will produce the same results as a 60-minute workout.

eBook #4 – Mindset & Motivational Manual

Losing weight is more than just a physical process; it’s a mental one too. Changing your mindset and finding motivation can be just as challenging – if not more challenging – than any workout.

This manual will teach you how to set goals and stick to them.

It’ll teach you how to stay motivated. This guide is chock full of valuable tips, secrets, and tools to help you get started and see the program through to the end.


  1. Rapid results – You’ll lose weight in just 21 days.
  2. Easy to follow – Everything is laid out for you. All you have to do is follow the blueprint to start losing excessive pounds.
  3. Educational – You’ll learn the science behind why we gain and lose weight. You’ll also learn how to eat right, so you can keep your pounds off after you are finished with this system. The author also shows you which foods actually slow down your body’s ability to burn fat.
  4. No gym membership or special equipment required – There’s no need to invest in expensive exercise equipment or a gym membership. Most of the workouts can be done right in your own home.


  1. Supplements are recommended – Supplements aren’t necessarily bad, but they can be expensive. If you’re on a budget, this may be a concern. The good news is that you can complete this system without buying any additional products, but supplements are recommended.
  2. You’ll need to be committed – This program is not a “magic pill” solution that will help you lose weight overnight. You’ll need to stick to it and commit to changing your lifestyle if you want to see results.

With the Mindset and Motivation Manual, you get all the tools you need to stay on the right track for the entire three-week program.

User Feedback & Experience

The 3-Week Diet has helped countless people lose weight. Just take a look at their testimonials below I was able to locate on various websites:

The overwhelming majority of the feedback published on independent wesbites such as TrustPilot and SiteJabber is positive. People love this program – and they see results.

Verdict: Great Value for Price Ratio

Is the 3-Week Diet work it? We think so. The science behind these techniques has been proven to be effective.

– You will receive a good detox guide.
– You’ll learn how to eat properly.
– You will have basic workout plan at your disposal.
– Everything is laid out for you, so you never have to guess what to do or eat next.

All this for mere $47.00 – that is really great value for price ratio. The program by Brian Flatt is a proven blueprint to weight loss that will help you reach your goals in just 21 days.

I found a special coupon for the three week diet here! 

Ben Jilani Author

I am a husband, a father, a failed vegan and company reviewer at your service!



    (March 29, 2018 - 2:00 am)

    Thanks for this review Ben. I’ve tried it and it works. The only thing is if you don’t maintain a good lifestyle afterwards you’ll gain the weight back. I’ve gained 10 pounds back but I’ll get back on the train.


    (March 29, 2018 - 2:01 am)

    I love the three week diet! It was hard fucking work but my life has improve significantly since doing it. My girl jumps on top of me now! haha


    (March 29, 2018 - 2:05 am)

    I was in a desperate situation. I had been with my partner for 6 years and things were starting to get stale. Also I had gained some weight I knew he was chatting with other guys on grindr. I needed to add some spice so I could save my relationship. This diet was the quickest and best way to do it. After this we had the best love making session we’ve had in years! He pays more attention to me and I know he’s not talking to other guys anymore. I couldn’t be happier than this.

    But I will say for anyone thinking of trying this you’ve got to be willing to put the work in it or you won’t see the results you should.


    (March 29, 2018 - 2:07 am)

    The first week was the most difficult for me. Giving up soda was like a death sentence. I admit I cheated but I did stick it out. All in all I lost 15lbs which is just okay. Next time I will soldier on through though! Thanks for the review BJ.


    (March 29, 2018 - 2:07 am)

    It works


    (April 26, 2018 - 4:03 am)

    Do you want to see a dramatic weight loss in your body? Does getting your body into the perfect shape of your choice make any sense to you? Do you want an ultimate yet effective diet system that can guarantee fast weight loss without many hassles?
    If your answer to the above questions is yes, then The 3 Week Diet Book is specifically meant for you.
    It combines 3 components of diet, exercise and willpower to increase fat-burning, and weight loss. It helped me to stay in shape without ever coming back to my original shape.

    Catherine Collins

    (April 26, 2018 - 4:04 am)

    Unlike other websites and e-books, “The 3 Week Diet ” can be trusted. The diet helped me a lot by shedding a few Kgs of weight. I can confidently recommend this book to anyone. Whats great about this is that the diet is divided into different phases and detailed intel on each nutrient is provided! The section on the workouts was really helpful.Simple, yet highly effective. Overall an awesome book. Great work! 🙂

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