Join our supportive Intermittent Fasting Community

About 21dayhero.com

We help you nail intermittent fasting and Reach your ultimate weight goals

Ever since starting 21DayHero.com, we have seen soo many people completely transforming their lives for the better, with the help of Intermittent Fasting. All 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 nail the 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 and feel happy and energized again!

What we do

We use latest research, professional guidance and our personal experience to help you achieve success with Intermittent Fasting and make your body and mind healthier. 

We focus on all things Intermittent Fasting:

  • Various Intermittent Fasting types (16/8, 20/4, OMAD, etc.)
  • Meal plans based on your weight goals, gender and activity level
  • Supplementary nutritional guidelines
  • Intermittent Fasting friendly products
  • Tools to support your journey 
  • and more. 

How we do it

Our Intermittent Fasting
21-day Meal Plans

Our meal plans have been carefully crafted with Registered Dietitian’s (RD) guidance, to ensure optimal nutritional balance for any age, gender and activity level. 

All our meal plans are designed for Intermittent Fasting lifestyle. 

Our Intermittent Fasting
21-day challenges

Our 21-day challenges are created to provide you all the necessary information and support to start and establish an intermittent fasting lifestyle. 

With daily tips, reminders and a supportive community, you will be able to lose weight and feel healthier in just 21 days. 

Our team

Jason Krul

Founder - CEO

Overworked, overstressed, poor diet….For many years I struggled with different ailments, until I discovered the power of intermittent fasting, and it has transformed my life.  Now I want to dedicate my work to helping others understand, use and feel the benefits of intermittent fasting. It has revitalized my passion for travel, fitness, and so much more!

Dr. Rashmi Byakodi

Medical Doctor, Writer

Dr. Rashmi Byakodi is a health and wellness writer who aims to spread awareness about health through her words. With her medical background and a passion for writing, she has been creating health content on various platforms.

Dr. Rashmi believes that with the right knowledge and a healthy lifestyle, we can combat many health issues, and she strives to spread the same through her blog posts.

Hayley Harris

Registered Dietitian

Being a Registered Dietitian and nutritional coach, Hayley consults 21 Day Hero on nutritional guidelines and meal plan creation. She hopes to inspire others to eat closely to the way that nature intended, capitalizing on the amazing benefits of whole unprocessed foods. Hayley shares her passion for simple healthy eating @hayleyharrisnutrition

Dr. Harshi Dhingra

Medical Doctor

Harshi is a licensed medical doctor with a specialization in Pathology and holds her medical degrees of MBBS and MD Pathology from esteemed institutes in India. She is currently employed as faculty in a medical school with tertiary care hospital and research center.

Harshi has vast experience of over a decade in research, diagnostic, clinical and teaching work and has several publications in indexed peer-reviewed journals. She has a strong interest in medical content research writing and reviewing. You can contact Harshi and see her work on Linkedin, Researchgate and Googlescholar.

Dr. Dimitar Marinov

Medical Doctor

Dr. Marinov is a medical doctor (MD), who specializes in Nutrition and Dietetics. He graduated from medicine with honors and started pursuing his Ph.D. right away.

Currently, he is an assistant professor at the Medical University of Varna, Bulgaria, teaching medical students about the importance of healthy nutrition, prevention, and health promotion.


Dr. Marinov has years of experience as both a physician and scientist in the field of preventive medicine, dieting, and metabolic health.


As a researcher, he has published numerous scientific articles in international peer-reviewed journals. You can learn more about his research or contact him with your questions on www.drmarinov.com.