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21-day intermittent fasting Challenge

Intermittent Fasting Money Back Guarantee Plan
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Lose weight & reduce body fat %

89% of participants lost 5-10 lbs (2-5 kg) in just 21 days.

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Improve relationship with food

9/10 participants felt more in control of their cravings and hunger.

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Feel & look

All participants after finishing the challenge reported feeling healthier & more confident.

Your health journey starts next Monday in:

🎆 Limited time offer 2 for 1 🎆

Buy this Challenge and get 1 FREE Meal Plan or Challenge

Join over 6900

people who have successfully lost weight with our Intermittent Fasting Challenge

Intermittent fasting weight loss results.

Read more in our article here.

Start next Monday

And see your weight disappear!

What others are saying about Intermittent Fasting

It's your time to get fit & healthy! 

Challenge Guidelines:


Hours eating

Consume all your food within the 8 hr window


Hours fasting

Pick a fasting window that suits your personal schedule


Stick to the same eating/fasting schedule throughout the challenge​

What will you learn?

The 3-Week Curriculum in a nutshell

Once you sign up, you will instantly get all the material you need to succeed in your challenge.

Challenge guide, Daily Plan, Meal ideas and Facebook community of people who are sharing the same journey. You will also get a Intermittent Fasting Meal Plan (pdf) that includes 2 meals and 1 snack a day. It will help you lose even more weight and ensure well-balanced nutrition. That’s what makes this challenge so powerful! 

You will get introduced to different fasting methods, get an overview of foods you can eat (and not), learn about side effects & how to avoid them, how to combine IF with workouts, and much more.

During the Intermittent Fasting Challenge you will be following the most sustainable method of Intermittent Fasting – 16/8 Fasting method. It means – consuming all your food during 8 hours window and fasting for 16 hours.

Enroll now! 

The first week sets the foundation for Intermittent Fasting. You will focus on educating yourself about Intermittent Fasting, finding your own fasting schedule that fits your lifestyle and learning how to curb the first hunger attacks.

You will slowly ease into 16/8 Fasting method during the first couple of days, starting with 12/12 fasting first.

You will also learn how to adapt your diet to get the best results and how to incorporate training to best fit your new eating pattern.

Sounds good, right? Join the challenge today.

The second week of the challenge will involve some changes to your diet and fasting timing. Once you feel comfortable with fasting daily, you will get to test your limits and extend the fasting period for a few hours.

Toward the end of the week, you will be introduced to the basics of healthy eating to compliment your new healthier lifestyle.

Are you ready? Join today, start on Monday.

The last week of the challenge is focused on making sure the habit you have developed stays with you for life. You will learn about different types of Intermittent Fasting and tools you can use to stay on track with Intermittent Fasting after the challenge is over.  

In addition, we will help you to build upon your knowledge of healthy eating: you will learn how to make smarter choices and what to pay attention to when deciding on your meals and choosing the snacks.

Includes: daily tasks, pre-recorded videos with experts, motivational tips, access to Facebook group, weekly progress tracking.

Get ready and sign up now!

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Your Challenge dates:

Start next  Monday

Finish in 21 days

Time left to sign up and become your healthiest self:

🎆 Limited time offer 2 for 1 🎆

Buy this Challenge and get 1 FREE Meal Plan or Challenge

Join the 21-day
Intermittent FAsting challenge

21 Day Intermittent Fasting Challenge + MEAL PLAN INCLUDED(!)
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Free Bonus when you sign up now:
21-day meal plan

$ 147
One-time payment in USD
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Frequently Asked Questions

It’s quite simple. 

  1. Instantly after signing up here, you will receive your login to the 21 Day Hero Member Zone. Your login information will also be sent to your in email.
  2. Once you login to the Member Zone, you will be able to see your Challenge and Meal Plan on the Dashboard.
  3. Click on the respective Challenge to access your onboarding material and Challenge Guide pdf.
  4. Starting from Day 1 till 21, you’ll be getting daily info with a clear action to take + daily knowledge and inspiration nugget. Daily content unlocks each day of the challenge on the Member Zone. In addition, you will also receive a daily reminder per e-mail.
  5. You’ll be able to track your overall challenge progress on the Dashboard and also using the Progress Tracking Sheet in the Challenge guide.
  6. To make sure you’re getting the most of your challenge, you will get invited to join an exclusive Facebook community. Your habit coaches and other challenge takers will be there to check in with you regularly and ask any questions you might have.

Challenge is prepared with both beginners and advanced in mind.

For intermittent fasting beginners the challenge will guide trough all 21 days and provide the necessary information on intermittent fasting, what’s the best way to start and how to lose weight in a healthy way. Our Facebook community is also a great way how to share your journey with others.

For people with previous intermittent fasting experience, the challenge can help build a consistent fasting habit, provide structure and deepen their intermittent fasting knowledge.

Once you sign up for the program, you’ll receive a confirmation e-mail with your Member Zone login.

Once you login to the Member Zone, you will find your Intermittent Fasting Challenge Page with Challenge Guide Ebook and next steps described. You will also be able to see your Intermittent Fasting Meal Plan on the dashboard.

You can choose between Regular-Omnivore diet, Keto, Vegan, Vegan Keto, Vegetarian and Paleo diets. The meal plans are designed for weight loss. 

You can also choose the calorie level – we have 3 alternatives based on your gender and activity level:

  • 1200 calorie meal plan
  • 1600 calorie meal plan
  • 2000 calorie meal plan  

Read more about our meal plans here

  • If you are female with no or little physical activity (up to 2x a week) -> 1200 kcal
  • If you are female with moderate physical activity (3x a week and more) -> 1600 kcal
  • If you are male with no or little physical activity (up to 2x a week) -> 1600 kcal
  • If you are male with moderate physical activity (3x a week and more) -> 2000 kcal

Read more about our Meal Plans here

In addition to the Meal Plan, you also receive a list of universal healthy meal suggestions you can have while fasting, so you can learn how to use Intermittent Fasting after you finished the Challenge.

You can use them as inspiration for your meals once you have completed the Meal Plan (after the Challenge). 

Joining Facebook group is optional – it’s a great chance to interact with others and make connections, yet you can perfectly fine do the challenge without joining the group. 

You will receive daily content and emails from us to keep you motivated, and can always reach out to our team through email if needed.

If you haven’t received your email from 21 Day Hero, please check your spam/junk and promotions folder – it might have accidentally landed there. You can also make a search in your inbox for an email from

If after doing the search you are still unable to locate our email, please reach out to us on . We will do our best to help you out!

Yes, all our products are a one-time payment and not a subscription.

If you want to continue your diet after the 21-day period, you will have to purchase a new meal plan. Or continue with a new challenge. No additional charges will ever occur.

Based on studies done on intermittent fasting main intermittent fasting benefits include: 

  • Lose weight and reduce body-fat percentage
  • Increase metabolic rate
  • Reduce blood pressure
  • Reduce blood sugar levels and risk of Type 2 Diabetes
  • Improve brain function and increase productivity
  • Induce cellular repair processes
  • Increase longevity
  • Boost your immune system, reduce inflammations and rejuvenate skin

Yes, we do offer 100% money back if you don’t lose weight within 2 weeks if you follow the program accordingly.

As stated in our Privacy Policy, we do not and will never share any personal data we collect (like Name and Email) with any third-parties. 

Did you know? These celebrities swear by Intermittent Fasting

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DISCLAIMER: Challenge benefits reflect the real-life experiences of individuals who have finished this 21-day challenge. However, individual results may vary and we do not guarantee you will experience the same benefits and results as others.

Information on this site is for educational and informational purposes only. You should not rely on this information as a substitute for, nor does it replace, professional medical advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional. Do not disregard, avoid or delay obtaining medical or health related advice from your health-care professional because of something you may have read on this site. The use of any information provided on this site is solely at your own risk.