Gym Performance

Clean Eating

21-Day Clean Eating Challenge

It will help you lose body fat,
develop healthy eating habits, and feel more energized.



Wouldn’t it feel great to lose some body fat?

To improve your mental and your cardiovascular health?


To develop healthy eating habits and have loads of energy throughout the day?

If you answered YES to any of these questions,
you are in the right place.


The 21-Day Clean Eating Challenge

 This Challenge is not only about weight loss; it’s about improving how you look, feel, and perform.
Your body composition will change. You will perform better—become stronger, have more endurance,
and experience more energy in general. Your overall mood and sense of well-being will improve. 


3 main benefits you can expect
after completing the 21-day clean eating challenge:

21-Day Clean Eating Challenge - Lose Body Fat


21-Day Clean Eating Challenge - Feel Energized


21-Day Clean Eating Challenge - Healthy Eating Habits


All the benefits of clean eating:

 Lose weight
 Reduce sugar cravings
 Eliminate food addictions
 Prevent cancer
 Impove cardiovascular health
 Have more energy
 Feel in control of your eating habits
 Develop self-discipline

 Reduce body inflammation
 Sleep better
 Increase mental focus
 Have a better mood
 Reduce risk of Type 2 diabetes
 Decrease hunger and food cravings
 Have all-day energy with no crash
 Normalize insulin levels

But what exactly is clean eating?

Simply put: If it’s processed, it’s not clean!

For 21 days, you’ll eat food that is processed as little as possible. Essentially, we look to eat foods in their whole forms, avoiding added sugars, salts, and fats. Foods that are high in fats and sugars are believed to produce inflammation – a state of systemic irritation that leads to chronic diseases. 

 Eliminating sugar from one’s diet. 

 Eating whole food and eliminating processed food. 

 Avoiding preservatives, colour additives and binders, stabilisers, emulsifiers and fat replacers. 


    How does the 21-day clean eating challenge work?

    21-Day Clean Eating Challenge - Step 1

    Sign Up

    Sign up for the 21-day clean eating challenge.

    21-Day Clean Eating Challenge - Step 2

    Receive Guidelines

    Receive confirmation along with the challenge guide, straight to your inbox.

    21-Day Clean Eating Challenge - Step 3


    Follow the guidelines and show your discipline.

    21-Day Clean Eating Challenge - Step 4

    Keep Yourself Accountable!

    Share your experience in an exclusive Facebook Group.

    All of this is included when you sign up today:

    E-book “21-Day No Sugar Challenge Guide” (pdf)​
    Diet template and example meal plan for muscle gain as well as for weight loss (pdf)
    Shopping list (pdf)
    Accountability group to help you complete the challenge successfully
    Exclusive community of like-minded people from all over the world
    Unlimited access to fitness coach Martin Blättler for questions or to seek advice

    $39 One-time payment in USD

    Frequently Asked Questions

    What happens after I sign up?

    Once you sign up for the 21-day clean eating challenge, you’ll receive a confirmation e-mail with the next steps along with the Challenge Guide E-book.

    How do you handle my data?

    While nowadays we might feel like our data is mistreated more often than not, Gym Performance we put great emphasis on respecting your privacy at all times. We do not and will never share any personal data we collect (like name and email) with thiry-parties.

    Why isn't it free?

    Let’s be honest: Free things do not motivate us. Cognitive psychologists have found out why; they call it loss aversion. In simple terms, we are more motivated by the fear of losing than by the satisfaction of gaining.

    It might sound counter-intuitive, but by paying for this challenge, you have a higher chance of successfully completing it and therefore enjoying all the benefits associated with clean eating.

    Also, it supports us and helps our team continue to provide you with a ton of useful content.

    3 reasons to take on the 21-day clean eating challenge

    21-Day Clean Eating Challenge - Healthy Lifestyle


    The 21-Day Clean Eating Challenge is designed to help you develop the habit of eating less junk and making healthier nutrition a sustainable routine. The longer you say NO to sugar and processed products, the more freedom you gain over your food choices and the easier it gets. There’s no going back.

    21-Day Clean Eating Challenge - Improved Body Composition


    Excessive consumption of sugar can lead to weight problems, fatigue, anxiety, depression, and other mental and physical disorders. Whatever you are craving, it’s time to end those bad habits! During the next 3 weeks, you will make the transition to a healthier lifestyle. 

    21-Day Clean Eating Challenge - No More Junk Food


    Build muscle whilst losing body fat. Isn’t this what we’re all after? We can assure you that you won’t reach that goal by eating pizza, ice cream, and Oreos all day long. When you start to eat clean, however, you provide your body with the nutrients it requires. Be prepared to lose some fat and even gain muscle along the way!

    The science behind clean eating

    The British Medical Journal found fewer heart disease risks and greater longevity among adults who eat less processed food. Also, a far more rigorous investigation by the National Institutes of Health showed that subjects who ate ultra-processed foods consumed significantly more calories and gained more weight than they did when they ate minimally processed or whole foods.


    Now turn it into practice and commit yourself to 21 days of clean eating!

    $39 One-time payment in USD

    About Martin Blättler

    Martin, also known as the ‘fit dad,’ is a body transformation coach from Switzerland.

    Having transformed more than 200 men and women over the past couple of years, he has become the go-to Online Coach when it comes to Nutrition, Training, and RESULTS.

    Martin is on a mission to share his knowledge with motivated individuals who want to get fit, gain strength, become more muscular and athletic, or lose body fat.

    Martin Blättler - Owner of Gym Performance
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