Stop Right NOW! If you’re looking for a real life review and results of the popular 3 Week Diet Program than this is the page for you! All the facts and information in this article is straight from a personal trainer! No Fluff! No BS! Find out if the 3 Week Diet is for you!

Picture of Robert

Hi there! My name is Robert, and I am a personal trainer and nutritionist from the sunny (and sometimes unbearably HOT!) Orlando, Florida!

I specialize mostly in Women’s health but have helped my fair share of men along the way too!

I am so excited to be able to share My 3 Week Diet Review today at Defining Weight Loss!

This site and it’s community has been dedicated to helping women find amazing results in health and fitness for the past decade and I’m so glad I get to be a part of it today!

Unless you’ve fallen out of the loop on the latest online diet craze, the 3 Week Diet (click here to see the official site) is that latest craze and people are experiencing amazing results with it… at least that’s what they say!

I’ve had a lot of readers ask me questions about the 3 Week Diet Program, so I went ahead and purchased it, read through it, tested it (yes, on a couple of my own clients) and would love to share with you my exact feelings on the diet and show the results first hand!

3 Week Diet Program Review and Results

3 Week Diet Manuals

The truth is, we all want to lose weight, however we want it to be as fast and pain free as possible!

All the time I get questions from followers asking:

Woman On Scale

How can I lose weight fast in time for a wedding?

How can I lose weight fast for a High School reunion?

How can I lose a quick few pounds for a date they are about to go on later that day?
(yes, some people ask how they can lose 5 pounds in matter of hours).

Luckily, if you fall into one of those categories, the 3 Week Diet just might be for you!

The 3 Week Diet is an instantly downloadable E-book that was put together by a gentleman by the name of Brian Flatt.

Mr. Flatt is said to be a personal trainer and owner of some fitness company from Los Angeles, although between me and you, I’ve never heard of this guy.

With that being said I shouldn’t be too harsh because 99% of people have never heard of me either! 😛

Nevertheless, the program is said to give you a complete body transformation in just 21 days of following! That means you may be in luck for that wedding coming up!

My Review: Here are my thoughts and opinions on the 3 Week Diet

The 3 Week Diet is in fact a short term diet program that focuses on losing as much weight as possible in the shortest amount of time possible, in this case, 3 weeks!

The idea behind this is simply put, it’s easier for someone to set a short term goal and achieve it compared to setting a goal that is say 3-6 months long.

I definitely stand by this notion and use the same thing with my clients.

Woman Reaching GoalI usually have them set 2 or 3 week goals because I see a much better success rate than if they goals are longer term.

This diet is promoted towards everyone but I believe this fits more personally with people who are only looking to lose weight.

If you are looking for more of a fitness type program to tone your muscles and lose weight in the process, I don’t think the 3 week diet will be for you.

One of the coolest things about this diet is they actually give you information on what to do after the 21 days is up and how to keep the weight off and maintain that healthy lifestyle.

That beats spending money on a diet and then it just ends after 21 days giving you no extra advice whatsoever.

The diet is broken down into 4 phases, again this keeping with the notion of short term goals.

During each phase, you are given a set of instructions to follow on exactly what to eat and when to eat it.

The idea here is to always keep your metabolism on fire.

Fire BurningThink of your metabolism like a fire and wood like food.

You have to continue to put wood on the fire, once that wood burns up, put more wood on.

However, you put too much wood on the fire and it dies.

Some concept applies with your metabolism… eat too much food at one time and your metabolism will slow.

So in the case of the 3 Week Diet, the idea is to eat very small meals about every 2 to 3 hours.

The big brainy idea behind this book is caloric deficiency. Which is the main concept behind all of weight loss, you want to burn more calories than you consume.

The 3 Week Diet kicks this up a notch and has you calculate how many calories you need to consume to maintain your weight and then has you cut this almost in half! WOWZERS!

Obviously by cutting your caloric intake in half there is no doubt you are going to drop weight.
Funny Comic
The book gives carbohydrates a bad rep and for the most part tells you to avoid them. This means your body is taking in straight protein and fat!

For those of you who know me personally, you know I am a huge fan of eating low carb!

So to lay everything out for you…. On the 3 week diet you will take on very little calories and virtually no carbs!

Yes it may sound painful to some, but if you can stick with it, this can only result in a MEGA AMOUNT of weight loss.Picture of Dumbbells

In addition to the diet portion of the program, Brian Flatt also gives you a set of workouts you can do to achieve even more weight loss!

I looked over all of these exercises and they are definitely real and legitimate.

Most of them are basic exercises like squats and curls, the idea is to work every part of your body so continue to burn off the calories.

Believe it or not the BEST fat burning exercises are those that use the muscles in your upper body.

In this case, you will not be building any muscle because of your caloric deficiency but you will definitely be burning lots of fat and calories.

Biggest Loser Logo

The nicest part about this is these workouts will only take up about 20 minutes of your day and they only take place a few days a week.

The same type of concept is used for extreme weight loss measures on TV shows like “Extreme Weight Loss” on ABC and “The Biggest Loser” on NBC.

I have even applied very similar strategies in my own work. It is tough. But any trainer will tell you…it works!

What’s Included With The 3 Week Diet

The 3 Week Diet is definitely packed full of A LOT of valuable information. Even though it is a tough diet, it guides you through every single step of the way.

The Introduction Manual3 Week Diet Introduction Manual

This introduction part of the diet does exactly as it says… it introduces you to it! This portion tells you exactly what the diet is about and the science behind it, basically everything we talked about above about caloric deficiency and low carb eating. It does have a lot of great motivational information too so even though the next 3 weeks will be challenging, the introduction manual gets you ready for it!

3 Week Diet ManualDiet Manual

This is where all the calculation takes place and where you figure out exactly how much (or little) you’ll be able to eat on this thing. All the foods and portion sizes are laid out for you conveniently making grocery shopping a breeze. Follow this part step by step and no matter who you are, you’ll definitely see and feel results

Workout Manual3 Week Diet Workout Manual

This is the optional area of the 3 Week Diet. You do not have to do any of the workouts but I would recommend them ONLY if you feel like you have the energy to do them. You may already be feeling a little drained from taking in a lot less calories so just be careful! Be here Brian Flatt lays out all the exercises and when and how to do them. Again, most of these are resistance workouts so will require small weights or resistance bands. Nicely, this part as well is laid out very clear and concise, it should be very easy to follow for you.

3 Week Diet Mindset ManualMindset & Motivation Guide

For those of you who know me personally, you’ll know this part has to be my favorite! I am a huge backer for a positive mindset when it comes to weight loss and exercise. I believe the mind plays a huge roll in our lives that many don’t even realize. In any event, I truly believe if you don’t have a positive mindset, and you don’t truly believe you can lose weight, you won’t! In this area there is a lot of tips, tricks and tools to help keep you mind positive and you motivation at an all time high! Namaste!

Pros and Cons of The 3 Week Diet

Like every diet program there are positive and definitely some drawbacks, I think I’ve listed quite a few throughout this review but I’ll lay them out plain and simple for you.

3 Week Diet CONS3 Week Diet cons

To be honest.. I didn’t find too many concerns with this program but here are a few things that come to mind…

Nothing Physical – This diet is in E-book format. So it is nice that it is instantly downloadable but with that keep in mind it is just a file on your computer. They do not send you meals in the mail or give you DVDs of any kind to do workouts. Obviously the price point is pretty low, so one shouldn’t expect all of that to come with it, but that could be a drawback for some.

Hungry Hunger – When starting out on this diet, you may at times feel hungry. This is all part of the process as your body is adjusting to your new calorie intake but I know there are some of you out there that cannot even go 2 minutes with hunger pains. If you can make it through a couple days of feeling a little bit emptier than usual, your body will adjust and the rest of the diet you’ll be just fine.

Dumbbells are required (kinda) – If you do decide you want to do the workouts provided within the 3 Week Diet, you will need to invest a little money in either a pair of dumbbells or resistance bands. Luckily these aren’t super expensive by any means, I’ve even found a pair of dumbbells and resistance bands on that are worth taking a look at. Of course if the working out part is not for you, no need to worry about this!

3 Week Diet PROS

3 Week Diet PositivesInstant Download – In a world where all we demand is instant gratification we can all applaud that the 3 Week Diet is instantly downloadable. That means once you click the purchase button, you can find the 3 Week Diet right inside your email inbox. That means you can get started TODAY if you decide this diet is for you!

At Home Friendly – The 3 Week Diet can all be completed in the comfort of your home! No gym memberships or meeting groups required. Once you receive the diet you can start it where you are right now! Even the workouts!

Easy to Understand – This is the thing I find most skeptical with diets found online. Some of them make no sense whatsoever. They use this type of scientific verbage that nobody understands in order to make themselves sound smart… unfortunately in this day and age… it doesn’t work! Luckily the 3 Week Diet is easy to understand and everything is laid out perfectly so getting confused or lost won’t be likely!

Motivation Section – Again, I love the fact that this diet specifically has a guide based on positive mindset and motivation. The #1 reason most people quit a diet is because their head is not in the game! I love that Brian Flatt took the time to include this section because I believe it sets this diet apart from the rest!

It’s Only 3 Weeks – Hurray again for instant gratification! This isn’t some 12 month program… you can easily complete it and see results in just 3 Weeks! The information is also there for you to complete the 3 week diet for a second round and continue on your weight loss journey.

It Works – Ok, ok, I know I haven’t shown you the physical proof yet. But just from a personal trainer and nutritionist stand point if someone was to follow the 3 Week Diet step by step there isn’t a way for it not to work. Reducing your caloric and carb intake to such a drastic level makes it nearly impossible for your body to gain or maintain weight. Even if you don’t have a lot of weight to lose or are trying to fend off those final pesky pounds, this diet would do the trick.

Money Back Guarantee – I don’t think I mentioned this enough, it is probably the biggest benefit of the program. There is a 60 Day Money Back Guarantee! That means if you try the diet and you did not lose weight with it, found it too challenging to stick with, or maybe it just wasn’t for you… you’ll get a no questions asked refund. With the diet only lasting 3 weeks anyway, 60 days is plenty of time to see if this is something that is truly worth the money to you.

The Results Are In! – Results of the 3 Week Diet

One of my favorite things to do when testing out different diet programs is to offer my services FREE of charge!

Occasionally I set up a kiosk in the Florida Mall in Orlando and meet people from all over the world who are struggling with their weight.

When I find someone who I think is a good candidate I offer for them to try one of these diet and nutrition programs on me!

I help them out every step of the way and they always see amazing results.

In return I ask if they will allow me to document their journey!

It’s good publicity for me and wonderful for their health.

Win/Win I say!
Florida Mall KioskMost of the time I do this with diets like Aktins and Jenny Craig, or fitness programs like Orange Theory.

However, after all questions I had been receiving about the 3 Week Diet I decided to find a couple good candidates to try this out for us!

I first met Melissa who is a server at the Cheesecake Factory (yummy!) she said she put on a lot of weight at work because well…what do you think they do with a lot of that delicious cheesecake that doesn’t get sold??

Exactly… it went right into her belly! lol

I set up Melissa with everything she needed to do the 3 Week Diet including the exercise equipment, and her results were pretty darn amazing!

Melissa's 3 Week Diet Results
She looks amazing right?

The cheesecake belly is gone! Melissa lost an incredible 16 pounds in the 3 Weeks she was on the diet!

Last time I spoke to Melissa she said she was the happiest she had been in years and feels like a whole new person.

I asked her if she still indulges in all that cheesecake at work, she laughed and said she just has a few bites every now and then 🙂

More 3 Week Diet Results

About 2 months ago I met Lucy who works at none other than Walt Disney World as an Attractions Hostess!

Lucy has 3 year old daughter and it wasn’t until she was born that she began her weight problems.

Nothing wrong with this, as we all know, our kids always come first. Just from having a few minute conversation with Lucy I knew she had the drive and perseverance to take on the 3 Week Diet!
Lucy's 3 Week Diet Results
Even more so I knew she could do 2 rounds of the 3 Week Diet, so that’s exactly what she did!

So here are her results!

Pretty incredible huh? Lucy lost 33 pounds in total with 2 rounds of the 3 Week Diet!

That’s 6 weeks in total! She looks like a completely different person and this is just in a matter of a month and a half!

​Again, it’s no surprise that these are the common results, if you’ve watched “The Biggest Loser” or similar extreme weight loss television shows you see the same amazing transformations.

It simply comes down to the cutting your calories and cutting your carbs.

When this is done consistently like the 3 Week Diet promotes, amazing body transformations are soon to follow!

The 3 Week Diet Price: Small Price for Huge Results!

So of course, with such amazing results comes a price tag. But do not fear… the positive aspects and incredible results far out-weigh the price.

The total cost of the 3 Week Diet and everything it includes is $47.

This is a one-time payment, nothing monthly or annually.

You pay $47 one time, and get the complete system for life along with the 60 Day Money Back Guarantee!

3 Week Diet Coupons and Discounts

Ok but let me ask you a question… who is your favorite personal trainer in the whole wide world??

Save Money!

I hope all of you said Me! If you didn’t hopefully you’ll change your answer after this.

I have a discount code for you! Wooo!

At Checkout use the code SKINNYME20 and automatically get 20% off your purchase!

That brings that price down to a hair over $37!

With all the diet and nutrition information included, an easy to follow layout, and incredible results… this price is definitely incredible for what you get!

Conclusion: I think you’ll be very happy with the 3 Week Diet

From a personal trainer and nutritionist stand-point, I am very impressed with the 3 Week Diet.

It implements a lot of the same practices I use every day with clients to achieve amazing results very quickly.

I highly recommend this diet to anyone needing to shred anywhere from a few pounds to a few HUNDRED pounds.

Woman On Scale

No matter what stage in the weight loss game you are in, if you follow this diet plan and restrict your calorie and carb intake, you will see results and you’ll see them fast!

Click Here if you are interested in purchasing the 3 Week Diet!

Remember to use the code SKINNYME20 to receive 20% off your order!

If you decide to give the 3 Week Diet a try I would love to see how you feel about it and/or see your results along the way!

Feel free to contact me at

Thank you for reading my review of the 3 Week Diet!

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I hope it gives you a better insight into the diet and answers any questions you may have. If you do have any additional questions do feel free to leave a comment below!

Until next time,

Robert 🙂

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13 thoughts on “

  1. Thank you Robert! This is the most indepth review of the 3 week diet ive seen so far. Love all your examples. Thank you for taking the time to write it.

  2. Of course Harmony it’s my pleasure!! Are you going to be trying the 3 week diet? If so let me know how it goes!

  3. Loved reading this review! I’ve actually done the 3 week diet in the past but I think I want to give it another go. My results the first time around were insane!

  4. I’m on week 2 of the diet and so far I am amazed at my results! You were right with what you said Robert. Our metabolisms are like a fire! Can’t wait for my final week.

  5. Hey Jasmin, I am so pleased to hear about your awesome results! It truly is a unique and special diet. I would love if you shared with me your results after week 3! Best of luck to you!!

  6. YAY!! I’ve been waiting for this review to come out from you! I spoke to you at the Florida Mall a few months ago when you were promoting Orange Theory. I will definitely be purchasing the 3 Week Diet and trying it out….I am a big fan of all your work and success Robert!!!!!

  7. FitGirl5 so glad to hear you enjoy my work! That’s what keeps me going every day is hearing all the positive feedback. And yes lol you can catch me occasionally at my little mall kiosk. Stop by anytime you want and say hi!

  8. Thank you for the coupon Robert! I couldn’t find any online that actually worked… This was the only one!!

  9. No problem Mariana! I got that one personally from the folks at the 3 Week Diet since I told them I was going to do a live case study. Good luck with the diet!

  10. I think I am going to try the 3 week diet. I put on a lot of weight since last October due to a family member passing. I just need something that I can be flexible with as my work schedule is rigorous.

  11. Hey Brit, the 3 week diet is for you. You can kinda modify it to work however you want it to. Some go all out and lose a lot of weight super quickly but others take their time with it and lose a large amount of weight but say in 4 or 5 weeks instead of 3. Make it your own and just because its called the 3 Week Diet doesn’t mean you have to do it for 3 weeks. Make it a lifestyle change if you please!

  12. Hey Robert! I took a CrossFit class from you about a year ago and loved every minute of it! I am interested in trying the diet however I am happy with the workout routine I have. Do you have to do the exact 3 week diet workout routine from the manual or can you any type of workout?

  13. Hey Candi! So glad you enjoyed my class! I still do the CrossFit courses every Friday morning! Stop by sometime!! And about the 3 week diet workouts… I think the workouts were designed specifically for the diet but that doesn’t mean you have to do them. I would say do whatever types of exercises that you enjoy. If you prefer to run or swim or yoga, I wouldn’t hesitate to do it. As long as you are staying active and following the diet plan you will definitely see results 🙂

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