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Intermittent Fasting 101

Have questions about fasting intermittently? We’ve got you covered!
Read our expert-written, evidence-based articles about fasting.

About 21 Day Hero and our mission:

I’m Jason Krul, the Founder of  Ever since starting, we have seen so many people completely transforming their lives for the better, with the help of Intermittent Fasting. From weight loss to increased mental & physical energy, reducing body inflammation, joint pain, bloating and much more.  

Our mission is to give you all the tools you need to start Intermittent Fasting, by providing you with the latest research and making it as easy as possible!

We’re here to help you to take back control of your life. your health and feel happy and energized again!

What We Do:

We use the latest research, professional guidance and our personal experience to help you achieve success with Intermittent Fasting and make your body and mind healthier.  We review the latest science and medical findings to give you the information you need on your intermittent fasting journey.  Our team of medical doctors, registered dietitians and health experts have written our articles using the latest medical research, and we update our content often to inform on the latest data.

We Focus on ALL things Intermittent Fasting:

  • Various Intermittent Fasting Types (16/8, 14/10, 18/6, OMAD, 20/4, etc..)
  • Meal Plans based on your weight goals, gender and activity level.
  • Supplementary nutritional guidelines
  • Intermittent Fasting friendly products
  • Tools to support your fasting journey
Learn more about the 21dayhero team here – About Us

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Feeling great with intermittent fasting! Energy Like I've never had before! - Hiking the Amazon, Climbing a mountain - Jason Krul

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Evidence Based Advice from Dieticians, MDs, Nutritionists

Our #1 rule at is to provide you with real, evidence-based information on intermittent fasting, weight loss and healthy nutrition.

Everything you’ll find on is prepared by our team of health professionals and experts in the topic.

Learn more about 21 Day Hero ->

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