Brian Flatt 3 Week Diet And 4 Week Diet Program: The Differences and Similarities

Losing weight appears to be a complicated task, but it is easier if you know the right way to go about it. There are many ways to lose weight; it depends on your efforts and dedication. However, when you are doing it the wrong way, your efforts and dedication might not pay off.

It could be frustration to do everything right; go for walk, follow crash diet programs, join the gym, and still not get lasting result. Another challenge a lot of people have been facing is maintain a slim figure.

Talking about crash diets; generally, a weight loss program that is designed to help users lose weight within a short period of time is not recommended by the fitness industry. Nutrition experts have also warned against it.


  1. Crash diets are unhealthy because they deprive your body of the necessary nutrients it needs.
  2. Crash diets are designed to focus on helping you lose weight, not body fat.
  3. While losing weight with crash diets, you will lose muscle mass which is very bad for your shape.
  4. Crash diets have bad effects on the skin of users too.

When you think about the devastating, long term consequences of obesity, you just want to get everything over and done with when it comes to losing weight.

This brings to Brian FLatt’s approach towards helping people lose weight.

Visit The Official Page Of The 3 Week Diet Program Here

So far, Brian Flatt has authored 3 weight loss programs that I know of; 2 Weeks Diet Plan, 3 Week Diet Plan and 4 Week Diet Plan, which are all designed to help users lose weight within a short period of time. Also, all of them have proven to be successful. However, for people have are yet to try any of Brian Flatt’s weight loss programs might not be sure about the ones to go for.

This is why on this review today; I will be discussing two of the programs, which are 3 Week Diet Plan and 4 Week Diet Plan. People are curious and want to know more about the author of this programs and if the programs are for real.

Visit The Official Page Of The 4 Week Diet Plan Here

Review Content

As far as some people are concerned, the ‘before and after’ photos of users of these weight loss programs might just be fake. So many companies and weight loss sites are promoting these fitness programs and the reviews are positive.

All these seem too good to be true about Brian Flatt’s program. Some people are also not sure if the weight loss approach that Brian has adopted in these guides are safe and without side effects, especially since everyone have been advised to stay away from ‘crash diets’.

However, I have gone through all these ‘crash diet’ weight loss programs by Brian Flatts and followed up on the feedback and testimonials of users on the internet and I am yet to come across any negative reviews about the programs or any feedback that complaints about any side effect of these programs.

So, what makes Brian Flat’s program different? It is the fact that Brian knows and educates the users of his guide on the difference between weight loss and fat loss.

This review is aimed at answering some questions about Brian Flatts programs. It consists of my detailed thought about the two programs. So, what is the difference between the 3 Week Diet and 4 Week Diet? What are their similarities? Which one of these two program should you go for and why?

If you are already familiar with any one of the programs and just looking for download links to anyone these Brian Flatt’s program, then you can make use of the link below:

So, let’s get started…

Review of the 3 Weeks Diet Plan And 4 Weeks Diet plan

The 3 Weeks Diet & 4 Weeks Diet Program – Differences

The 3 Week Diet is a weight loss PDF program of 96 pages that is designed and help users lose a significant amount of fat of about 10-20 pounds in the body in 21 days while the 4 Week Diet program is designed to help users lose up to 32 pounds of excess body fat in 28 days.

The 3 Week Diet is a unique and effective weight loss program that is completely customized to fit your body type and ensure you are not consuming foods that are making your body to hold on to fats. While the 4 weeks diet, on the other hand, is designed to help you control the 4 hormones (insulin, ghrelin, cortisol and adiponectin) that are responsible for regulating the fat hormones in your body.

The 3 Week Diet program helps you identify your body-type and train you to get the right foods in the right combination to suit it so that your body will mimic the metabolism of long-distance cyclist with body-typed-customized diet menus.

The 3 Week Diet program comes with Research manual, Diet Manual, Motivational Guides and Workout regimes while the 4 Week Diet plan comes with Launch Handbook, Diet Handbook, Activity Handbook, Motivational Handbook and a bonus, Hypnosis For Weight Loss guide.

The 3 Week diet program is not suitable for a vegetarian because they are likely to have trouble with the detox phase but the 4 Week Diet program is suitable for vegetarians and vegans. There are also plenty of meat free options in the diet guide.

The 3 Week Diet program does not come with videos but pictures and illustrations of the exercises routine while the 4 Week Diet programs comes with downloadable videos.

The 3 Week Diet comes in 4 phases which are:

  1. Phase #1 – Liver Detoxification
  2. Phase #2 – 24 Hours Fasting
  3. Phase #3 – Fat Fast
  4. Phase #4 – Your Unique BMR

While the 4 Week Diet comes in 5 phases which are:

  1. Eating low-carb diets to set up your body to burn fat
  2. First experiment with intermittent fasting
  3. Designed to build momentum for the previous pahses in order to maximize fat loss
  4. Another short fast
  5. Designed for normal eating but still involves calorie deficit.

The 3 Weeks and 4 Weeks Diet Program – Similarities

Weight Loss vs. Fat Loss

Both programs identify the difference between weight loss and fat loss. Brian Flatt explain the difference and how both work in his programs.

Scientifically Backed-up

Both programs provide only techniques that have proven by science. Most of the techniques highlighted in the programs are revealed after explanation and then later proven with scientific research.

Fast Results

Diet is generally believed to be something designed to be followed for a short period of time and most weight loss diet programs show slow results and unmet expectations, people get discouraged. Research has proven has shown that most people don’t have enough motivation it takes to stick to a diet for a long time. But getting quick result is a great motivation when it comes to weight loss.

3 week diet

Download The 3 Week Diet Program Now

Money Back Guarantee

One of the biggest strong points of this program, despite its promise to help you lose weight in just 21 and 28 days, is the fact that they both come with 60 days money back guarantee. This mean you have a right back to your investment on any of the program if you are not satisfied with them for whatever reason.

Positive Reviews

Both of these Brian Flatt’s weight loss diet programs have received a lot of positive reviews online with pictures of successful users to prove that the programs actually work. Users are happily showing their ‘before and after’ pictures online.

Digital format only

Both programs by Brain Flat is only available in PDF format alone. People that are not fans of digital products might not be able to benefit from this guide. However, if you don’t mind printing it to get a hard copy, then you can go for the guide.

Almost Good For All

These diet weight loss programs are good for people that do not have serious health issues, other than the desire to lose excess body fat.

Excellent for people with busy schedule

The 3 Week Diet and 4 Week Diet program are the best choice for people that just want to ‘get it over and done’ when it comes losing weight. You don’t have to wait for several months before you start seeing the results of your weight loss efforts.

Also, the exercises that come with the program are what you can do in 15 minutes every day of the 4 Weeks Diet plan and 20-30 minutes for the 3 Weeks Diet program.

Lasting Results

These programs are good for anyone seeking to jumpstart their transformation with serious momentum. For people that want to maintain healthy weight and have lasting results, they may continue with the program after a month if they so desire.


In both program, Brian Flatt discuss fat burning supplements. What works and what doesn’t. Some of his recommendations may even surprise you.

3 week dietExercise

People who lose weight rapidly in a short time usually lose their muscle definition and tone. Brian understands the importance of exercise in weight loss and has taken time to include some step-by-step exercise routines that will help you burn body fat speedily and stimulate your muscle fibre. This gives you a great physique, an attractive and well-defined shape.

Both Authored By Brain Flatt

Brian Flatt is the brain behind both the 3 Weeks and 4 Weeks Diet plan. He is an n experienced and knowledgeable fitness expert, nutritionist and health coach. This quick weight loss techniques revealed in his programs is products of over 12 years of research. So many people have benefited from Brian Flatt’s experience in the fitness industry.

Download The 4 Weeks Diet Program Now


If like most people, you have tried many weight loss programs and end up with the feeling of disappointment, then you might want to try a quick-fix method that has been proven to have no side effects.

It is hard to continue with a harsh diet that also do not give fast result; you can easily get discouraged with this. Getting positive results as fast as possible from weight loss program is a motivation on its own.

Instead of continuing with different weight loss pills, programs and gadgets that seems not to work, you might want to ditch all those for better program that will help you achieve your weight loss goal. .

So far, I hope this review has helped you with the insight into the techniques adopted by Brian in these programs and I also hope you can now make an informed decision n whether you should check out any one of the programs or the exact one you should go for.

Remember that you have 2 months back guarantee to test-drive any of these these programs.

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