Fasting and Fitness for Females

MEET YOUR COACH

Kristen Grundke —

I have loved exercise and coaching for as long as I can remember. Fitness became my focus after grad school and I've been coaching ever since. NEVER have I been so excited to apply my 30+ yrs of coaching exercise to coaching habits. Formula3, and all it's related programs, will change your life for the better and for good!

Helping you to move better, eat better and feel better starts with working together. You know you need to spend time on your health and I’m here to help you make it an essential AND enjoyable part of your day.

I understand the difficulties of juggling family, work and personal life. I also know what it feels like when you’re missing the motivation. These universal struggles can make you feel like you’re the only one who can’t figure it out.

I am here to encourage you to know that your health can improve no matter where you start and together, we can create your personalized plan for living life to the fullest.

EXPLORE YOUR
COACHING OPTIONS

Recent Blog Posts

Follow me on social media!

Featured In Edge Magazine

  • Kristin and her Formula 3 program changed my life: my body, my gut and my confidence. Kristin is so knowledgeable and will guide you in your fasting schedule, help with resources and workouts and get you on track for a healthier body and mind.
    —Marci S.


  • This has been the best program I have ever done for weight loss and getting healthy. I have done many different ones and this by far has been the easiest and the most life long. Kristen is great, I have known her for over 20 years. First as my favorite instructor at a health club, several of us followed her from one place to the next. I was afraid to start this program in case I would fail but Kristen told me that she would believe in my until I could believe in myself. She is full of energy and positivity and I love her energy. She is definitely a life giver!
    — Zahra P.


  • Kristen is the most positive and supportive person! I love working with her. She listens, offers coaching for solutions, and has amazing follow up. Nutritional information and fitness options are available and excellent!
    —Joyce B.


  • I have loved working with Kristen. She is a phenomenal coach and has a wealth of knowledge to share! I struggled to loose weight for several years. I was noticing increased fatigue, headaches, and acne. Through formula 3 and now formula 3.2 I have more energy, headaches have resolved, and I have been able to loose the weight and keep it off for over a year because of the tools I learned and the accountability Kristen provides. It is a program that is flexible and fits easily within my lifestyle. I do not feel deprived or restricted, but rather am empowered to make good decisions regarding my health.
    — Kristen A.


  • Formula3 was such a great experience for me and my health. I lost inches and pounds but also gained so much knowledge about my body and how to work with it. I graduated formula3 about a year ago and am still using the tools each day to continue on. Kristen does a great job of sharing her knowledge and holding me accountable.
    — Abby F.


  • After years of struggling with my weight, not only was KLivFit the answer…it was the fastest, easiest, most successful program I’ve ever tried. Plus, over a year later, the weight is still off, hip pain is gone, other inflammatory symptoms are gone, and I feel great! I’d highly recommend making the investment in yourself…you’ll never regret it!
    — Stacie H.


  • Kristen is AMAZING!! She goes above and beyond every single day. Her wealth of knowledge and ability to encourage, support and teach this new way of life is incredible. She makes it make sense! TRANSFORMATION is her specialty!
    – Sara T.


  • Working with KLiv Fit helped me take fasting to a new level of healing. It taught me I could survive without eating for 72 hours. We have been brainwashed for so many years to think 3 MAD was necessary. Helping me map out weekly fasting schedules around life was huge. The workouts have been great for full body muscle building. I have a bad back and KLiv Fit helped me modify exercises to get the same effect without causing back pain. I love all the recipe sharing and her fasting aids.
    — Mandi S.


  • The Klivfit services are awesome! I have used and still do use her intermittent fasting guidance and have achieved excellent results. I also utilize her personal training services. I always walk out feeling great! I highly recommend KlivFit!
    – Kerry B.


  • Kristen and her coaching style exemplifies a tailored experience for those seeking an expert in health, females, fitness and fasting.
    — Gina L.


  • Love Kristen and her KLivFit plan. Love the one on one and the detailed guidance. I highly recommend!
    – Susan R.


  • Kristen is the Real deal in fasting, taking on each client individually and treating them as though they are the only Client. She’s dedicating to constantly educating herself with the newest and most prevalent information regarding fasting, cycles, hormones, ketones and how it all works together. She is one of the most well rounded and down to earth women I’ve ever met! I’d definitely recommend her over and over
    – Tyler & Nancy S.

  • I began Formula 3 in March of 2022. I had been doing a bit of intermittent fasting on my own, and was maintaining my weight, but was not making substantial progress. I saw Kristen’s program and posts and visited with her about what the program entailed and decided to make the investment! I have joined gyms in the past, done some online apps, programs, etc. that resulted in meager success for awhile, but nothing that was sustained. This is why I am so excited about Formula 3. It works! It is a lifestyle change that I am able to maintain without feeling deprived or restricted! It gets to the root cause of weight gain! It is honestly the easiest thing I have done to loose and maintain weight loss, and the frequent headaches, acne (at age 50), and drops in energy are essentially gone!
    —Kristen A.

  • Kristen has developed an incredible program! Formula3 has been the answer to my prayers after struggling so many years to manage my weight. I never thought I'd have the answers. Thanks to Kristen, I do, and it's been incredible! I feel better than I have in decades. My husband and I have lost a total of 68lbs since I started her program. KLivFit gave us the tools we needed to live a healthy life without deprivation.
    —Tracy G.

  • The formula 3 program from Kristen has been a godsend to me. I have tried so many things over the years; restricting calories, counting calories, eating certain foods and avoiding certain foods. And it all came down to when I was eating paying attention and being okay with not eating for a period of time. I have lost 22 lb in the first 12 weeks and I have the confidence to continue on my own, and the option to keep continuing to work with Kristen if I choose.
    — Michelle S.