21-Day Keto Challenge

21-days of expert learning materials, recipes, support, guidance, motivation  – and most importantly – 21 days of results.

Lose weight, improve your energy, learn discipline and become an expert at taking control of your own health and well-being!

5.00 out of 5 based on 12 customer ratings
(12 customer reviews)

21-Day Keto Challenge

A complete, medically approved ketogenic diet course and system to kickstart your healthy lifestyle. 21 days of guidance, recipes, motivation and expert consultation. Challenges begin every Monday.


SKU: 001 Category:

Daily Personalized Emails

Daily emails that include learning videos, guides, tips & tricks, recipes, solutions to common mistakes and misconceptions, the latest research and much more!

Killin It Keto Guide

You’ll receive Rachel’s complete Killin It Keto Guide- a pdf with everything you need to successfully master the ketogenic diet and lifestyle.

Access to Facebook Group

You will receive access to the Killin It Keto Lifestyle group where like-minded keto enthusiasts discuss health and fitness while creating a virtual community for everyday support.

What is the ketogenic diet?

The ketogenic diet is a high fat, moderate protein, low-carbohydrate diet. In recent years, a substantial amount of evidence has accumulated in the literature supporting the use of a ketogenic diet as a therapeutic tool to treat epilepsy, cardiovascular disease, Type 2 diabetes, obesity, Alzheimer’s, Parkinson’s and even cancer. In addition, ketogenic diets are recognized as one of the more effective treatments for long term improvements in body weight, body composition, cardiovascular health markers, and diet tolerability, especially when compared to low-fat diets.

When you lower your carbohydrate intake and increase your fat intake, your body shifts from using glucose (sugar/carbohydrates) for fuel to using fat and ketones for fuel. Ketones are a much cleaner and more efficient source of energy for your body and brain compared to glucose. Some even refer to ketones as a “Super Fuel.” Throughout this challenge I will teach you all about ketosis and the benefits that occur from following this type of lifestyle.

What can you expect?

Burn Fat

Increased Energy


Mental Stamina


Nutritional Education

12 reviews for 21-Day Keto Challenge

  1. Rated 5 out of 5

    Bryan Fedor

    It’s always easy to start a new program to improve one’s self, bit it’s not always easy to continue successfully.
    What I loved about this program was the enthusiasm, the super service and friendly support of Rachel and even the community on the web platform, and the knowledge base that was applied in what felt like an individual as well as a group approach. It was especially fascinating to learn some deep physiology about how things work the way they do, such as kidney function in a low insulin environment which requires an increased salt intake, which even despite all I’ve read and studied, I never knew before! Things like that helped solidify my resolve and discipline and helped me buy into the program and empower me to get the most out of it. Rachel has developed a wonderful winner of a program here and is an exceptional among nutrition specialists everywhere!

  2. Rated 5 out of 5

    Ashlynn Marie

    During my entire 21 Day Keto Challenge, Rachel was always available to help in any way she could. What I loved was that she would send out daily emails that listed interesting facts, topics or tools to use during the journey. She was also available to answer any type of question at any time of the day. Her friendly and helpful demeanor helped everyone who was in the group come together and help one another. She really knows what she is doing, and if she doesn’t, she’s more than happy to find out the information and/or facts for you. She really is amazing at what she does!!! 🙂

  3. Rated 5 out of 5

    H Ann Champ

    Rachel is incredibly helpful and informative regarding any questions I had making the change to the ketogenic lifestyle.

  4. Rated 5 out of 5

    Melissa Susan

    I remember my cousin telling me about her research study and then I read her published thesis…I was still apprehensive about her “new found” (to me) nutrition plan. In my youth, I was athletic. I haven’t eaten meat since I was 16. I have always exercised in some form since becoming an adult. I considered myself “healthy”. Up until July 10th (when her 1st challenge started), my definition of healthy nutrition was minimal fat, minimal sugar, and lower carbs (gluten free since Feb)…my diet consisted of fruit, veggies, seafood/soy/beans/dairy for protein sources. Unlike most people I know, I was actually fairly content with my body appearance and how I felt about myself.
    Fast forward to now and I have a new outlook on my nutrition and a fond appreciation for all that a Keto lifestyle can provide for anyone and everyone!
    I have been able to incorporate an increased amount of fat and protein in my diet, while lowering my carb totals with minimal effort. I have utilized a free app called “lose it” especially in the beginning so I could see my macro percentages. However, nothing has compared to the vast amount of information and moral support that I was provided with during the 21 day challenge. The research is abundant and the effects are so positive, that there is no reason for anyone not to at least try the challenge.
    Personally, I have lost weight, lost body fat, and have improved my performance at the gym. In addition, I have noticed I have an increased amount of energy. (This comes in handy as I work 2 nights a week 7p-7a) I was told to “trust the process”, and I did. I didn’t succumb to the “Keto flu” and I am thankful that I persevered because I have never felt better!

  5. Rated 5 out of 5

    Lupe Dickens

    I’ve been going Keto for about 11 weeks now with Rachel’s guidance to start of the last challenge she had. It hasn’t been as hard to maintain as other changes I have tried in the past. I am feeling great! The mental clarity kicked in around week 5 – that was the hard part, having the patience to wait for the much talked about mental clarity! My energy levels have also increased and I don’t feel so drained after all day at the office – which is great since I go home to my daughter and have to do the homework, dinner, shower, bedtime routine every night now that school is back in session. The fat bombs are awesome, especially when I have a craving for something sweet or chocolaty. Best part is that I can be around all sorts of desserts and not feel like I HAVE to eat something! Don’t get me wrong, I’ve had a bite here and there with the special home-baked stuff, but so far nothing has kicked me out of ketosis for he past 10 weeks.It just get’s easier every week I’m living this lifestyle. Thank YOU Rachel for bringing this around and having the challenge in July!

  6. Rated 5 out of 5

    Jamie Ford Follmar

    Rachel is an incredible resource for learning about the ketogenic diet. I participated in her 21 day challenge. I have taken part in many nutrition challenges within the CrossFit community over several years, but Rachel’s was by far the most in depth with daily emails, a Facebook support group, and quick answers to any and all questions that I had. I highly recommend utilizing her knowledge and helpfulness to learn about the ketogenic diet and incorporating it with workouts.

  7. Rated 5 out of 5

    Nicole Loucks

    After I saw the results of living a keto lifestyle from family, I was excited to be a part of the 21 day challenge.
    The thing I loved about keto was that it was so easy to live a normal life. Unlike many diets where I felt so limited by the food I could eat, I could make slight modifications to foods I alright enjoyed eating – and actually liked!
    What I loved about the challenge was that Rachel provided everything you need to know. It allowed me to know as much or little as I wanted to for any topic. And the results are amazing!

  8. Rated 5 out of 5


    I think Keto is life-changing in a keenly positive way; even if you apply it only partially in your life, like I have 🙂 HUGE !!

  9. Rated 5 out of 5

    Taylor Johnson

    Rachel is great! She is super helpful and always willing to answer your questions. During the 21 Day Keto Challenge Rachel really took her time to educate all participants , sending an educating email everyday of the challenge. Because of Rachel eating keto friendly is a lifestyle not just a fad diet. Plus I lost almost 20 pounds in the first 21 days! She is fantastic and would recommend her to anyone!

  10. Rated 5 out of 5

    Carly Alexander

    Coming into the challenge, I was an extremely picky eater and wasn’t sure I was going to be able to participate. However, Rachel was excellent in helping me with meal selections/planning and motivation to get me through. I have so much more energy and lost 8 pounds! I’m looking forward to incorporating everything that Rachel has taught me into my everyday life. I highly recommend this challenge and know that Rachel is going to make a huge impact in the work of ketogenic diets!

  11. Rated 5 out of 5


    Rachel is quick to respond on any question you have, and often she has already thought of your question and you will receive a well thought out answer and videos/materials that help you to fully understand keto and how to make it your lifestyle. I started the challenge after the holiday season and within 5 days I stopped craving any sugar or bread. I was shocked to find myself in front of a warm bread basket at a restaurant and not even craving a piece! I was so satisfied by the food I was eating under keto, I felt no need for the bread basket (which for me says a lot!). I saw my cellulite shrinking and my energy levels rising, two things that made me much happier. I had a lot of fun using the cookbooks Rachel suggested to make meals for me and my boyfriend. I love to cook and it was fun doing easy keto-friendly recipes!

    I am still keto and after 21 days it is so easy to maintain and I feel great doing it!

  12. Rated 5 out of 5

    Alexandra Savage

    Rachel is not only a great coach, but, also very personable with your plan. Rachel responds VERY quickly to any question you have. I had so many questions and she always answered ALL of them and did not make me feel dumb since I was brand new to the ketogenic diet and knew nothing about it. This program was an eye opening experience for me. Through this program I learned more about self-care and giving your body the right nutrients it needs. I also learned its okay to have quality high fat foods which was a hard concept for me to understand. I did before and after pictures and I slimmed at the waist and muffin tops! Wooh! In addition, my energy boosted. My fiance’ and I did this together which made it even better to hold each other accountable and made it a fun experience to cook together. Another plus is since you are meal prepping we saved more money! I would recommend this program to anyone who wants the best!!!!

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