The Breakthrough Project: A one-on-one coaching experience that will give you the tools, support, and accountability to reach your goals.

I’ve been in the fitness industry since 1997 and I’ve worked with thousands of women who are frustrated with the amount of time and effort they are putting in to reaching their goals, yet not seeing the results they want.

Believe me, I can relate because I’ve been there. I spent years with the “more is better” and “all or nothing” mentality when it came to wanting to change my body. I was so frustrated with the lack of results I was getting, so I just kept doing more, and when that didn’t work, I went searching for another solution in the form of a diet or exercise plan. I gave up fats, then carbs then sugar. I counted points, calories, and macros. I trained for bikini competitions, sprint triathlons and road races, all in an effort to get the body I wanted, but getting further and further away from it the harder I tried.

Something shifted for me when I became pregnant with my twin boys. My focus changed from constantly judging what my body looked like to appreciating it for what it was doing, which was pretty incredible. I started to relax more around food and exercise and began doing a lot more work on the most important aspect of lasting change, my thoughts and mindset.

Over the last few years I’ve learned many tools and strategies that have helped me transform my relationship with food and exercise. I’ve learned the importance of hormonal balance, efficient exercise and automated nutrition when it comes to body change and I’ve practiced changing my “story" and my limiting beliefs to find balance and peace with my body. I want to share those tools with you so that you no longer feel confused and frustrated. I’ll work one on one with you to help you breakthrough whatever is holding you back from becoming your happiest, most confident version of yourself.

During this experience, I will share with you what has helped me repair my relationship with food and exercise, in addition to my almost 20 (ahhh!) years of experience as a fitness professional combined into a well-rounded 6 month educational program. We will work side by side on finding the nutrition, exercise and mindset balance that fits your goals and your lifestyle.

Apply Here!

So what is this program all about?


Group coaching programs are a great way to kick-start your efforts to get fit and healthy with the accountability of a coach and a group.

But sometimes you need that little bit extra to ensure you’re getting something that works for you – and where you can get the feedback and small tweaks you need to break through those plateaus and really thrive.

When you sign up for my one-on-one coaching service you’ll get a tailored program with personalized effective nutrition, fitness, and mindset strategies and everything you need to implement them – and not just in an ideal world, but in your world.


Implementing new habits involves addressing the underlying factors behind your current ones.

When you sign up for one-on-one coaching you’ll get the extra attention you need to identify, overcome and BREAK THROUGH any habits, routines, and old stories that might be sabotaging your efforts – and to develop effective and sustainable solutions to achieve your goals, whether they are to get stronger, leaner or to just have a better relationship with food and stop the "all-or-nothing" mindset.

One of the major pros of this kind of ultra-personal coaching is that it’s hard to let things slide. With unlimited email access, phone call check-ins, and plenty of tailored content being sent your way, I'll be there to support you, encourage you and hold you accountable to your goals.

This project is 6 months for a reason. You'll have ups and downs. I'm sure you've started over a million times in the past. I'll be there to keep you on track. To keep working towards your goals and to work through any bumps in the road you face along the way.



Group settings are great for sharing progress and cheering each other on, that is why we will have a closed Facebook group to go along with this program. But let's be real, everyone’s weight loss and fitness journey is different.

Maybe you have questions you don’t really want to ask in front of the internet – or even the private Facebook group. Or maybe things just aren’t going so well and you need an advocate in your corner to help you break through those frustrating plateaus, mental blocks, and old habits to get you where you need to be.

With this program you’ll get personalized coaching designed to help you meet your goals. And with everything guaranteed to be kept just between the two of us, you can ask all those tough questions or work through those issues you’ve been struggling with in a safe and supportive space.

So what do you get with the one-on-one coaching?

Basically, you get more of everything to help you break through the things that are stalling your results…and create your version of the LEAN life!

You get more support, more accountability, and more personalization – and that’s just the beginning.

You’ll get knowledge, the "whys" and the education behind the nutrition, exercise and mindset pieces, but more importantly you’ll get everything you need for implementation – because being able to take action CONSISTENTLY is how you get results.

And best of all, you’ll get that great feeling of knowing that you’ve really given it your all.


What You Get:

  • Six phone calls with me that can be used over the course of your coaching package. During the calls we review what you have been doing, identify struggles, and go over your progress.

  • Educational videos on nutrition, fitness, and mindset to guide you towards long-term, sustainable success, as well as the action steps needed to IMPLEMENT them.

    Individualized nutrition and exercise programs that fit YOUR schedule, goals and lifestyle. 


  • Unlimited email access for daily accountability and support, and to ask questions or go over anything that pops up between our coaching calls.

  • ProCoach

    Access to Precision Nutrition’s ProCoach platform that focuses on habit-based (or practice-based) coaching.

    Habit-based coaching is rooted in the best practices of change psychology. In other words, it’s built on the latest science of what actually helps people develop new skills and make change in their lives.

    You will get DAILY habits, habit checks, lessons and assignments as well as regular progress checks. This program is like NO other!

Does this sound like you? If you are serious about working with me and want to breakthrough whatever it is that has been holding you back from living a healthy and LEAN lifestyle apply here!Due to the nature of this program, spaces are limited.

     Who Is This For?

    • Women who want to learn more about how hormones affect their body and as a result, have more energy, feel lighter, tighter, and less bloated.
    • Women looking to get leaner, stronger or just feel better in their clothes.
    • Women who are sick and tired of “starting on Monday” and want to get rid of the “all or nothing, more is better” mentality.
    • Women who want to work with an expert to program their workouts without spending a fortune, and get feedback and advice based on their individual needs and goals on a daily basis.
    • Women who feel "stuck" with their fitness and fat loss goals and want to learn the most effective and efficient ways to exercise to optimize fat burning.
    • Women who are ready to stop dieting and start living a lifestyle that will not only get you great results, but also be something that they can sustain.
    • Women who want to learn more about the power of habit, willpower and positive thoughts as they relate to losing body fat.
    • Women who want to stop obsessing over exercise and food and be comfortable in their own skin

     Who Is This NOT For?

    • Anyone unwilling to put the work in, both in the kitchen and with their mindset, to create a foundation for a lifestyle change. Like anything else, you get out of it what you put into it!
    • Anyone who is looking to lose weight fast. This is not a quick fix. This is a program that will educate you to listen to, and learn from, the feedback that you are getting everyday from your body.
    • Anyone training for a figure competition or physique contest of any kind. This is a lifestyle, not a competition prep plan.
    Apply Here!
    Hear what some of Keri's clients had to say about the program!

    Jackie's 1:1 Experience from Keri Mantie on Vimeo.

    The coaching program breaks down to about $82 per week for a total for $327 per month each month for the 6 months.

    Apply Today!
    Read what some of Keri's clients had to say about the program!

    Under Keri’s guidance, I have lost over 17 pounds, have gone from a size 10 to a size 6 (sometimes 4), and I am the leanest that I have been in years. My eating has become more automated so it does not feel as much of a chore to make better choices because I realize I feel better eating this way. I choose the foods I like, foods that make me feel good, there are no supplements involved and I never felt any pressure to follow any specific rules, which always backfired for me....and I've never had to completely give up wine or social events which is huge for me!

    Carolyn - Age 54

    "I’ve always considered myself to be a healthy individual.  I try to eat right, and get some sort of exercise regularly.  But going into and through menopause and working from home, I found it harder and harder to maintain what I might consider an “ideal weight”.  Since we joined forces, I’ve learned so much.

    Keri's coaching, encouragement, and no guilt positivity has helped me to rethink the way I think.  I’m conscious of every choice I’m making for what I’m eating and/or drinking.  And I do so without “guilt” - which is so important.  I no longer have the sabotaging thoughts that I’ve now ‘ruined my progress’ because I over indulged.  I get back on the horse as fast as I can and get back on track.   Because of all of Keri's encouragement, I have dropped 15+ pounds and I am wearing clothes that I never thought would see the light of day again. I feel fantastic, I sleep better, and I have more energy.  Without Keri, I wouldn’t be where I am right now and thank you just isn’t enough!

    Carolyn - Age 54

    "Everything I thought I knew changed when I started working with Keri.  Keri's program has taught me to be mindful of when I am hungry and what I am eating. She also helped redirect my ideas about working out and for the first time I finally get it and understand what you need for fat loss. For the past 7 years, I have not seen the scale move until I started working with Keri in February. I am down 20 pounds and two sizes. I actually feel better too. I wish I had started working with Keri years ago.”


    As someone who has struggled with my weight most of my life, I was sick and tired of constantly being on a diet or if I wasn’t on a diet, feeling like I should be on a diet or feeling guilty about what I was eating.  I was not happy when I looked in the mirror and frankly, I was sick of being unhappy with my body.  Plus, I am in my mid-40’s I was concerned that if I did not do something with my weight, I would start having health issues.  I want to be an active and adventurous person who is not hindered by my excess weight.  I was looking for a program that would help me to make lasting sustainable changes in my life and help me stop the vicious cycle of dieting.   I had lost weight before, but I needed to learn to keep it off for good.  As tempting as it is to look for the quick fixes, pills, shakes, etc. . . I knew I needed something more than an extreme diet plan (I have already done all that . . . ).  I needed to learn how to develop a healthy relationship with food and to make a lasting change.  I did the Lean Life 15 Day Challenge Group and I really liked that program and when I learned about the 6 month coaching group, I knew I wanted to do it.  To me the 6 month commitment seemed like a great way to make lasting change.  It would give me the opportunity to do this through various seasons, holidays, and events in my life and not just when it was convenient.  I wanted the 1:1 accountability that Keri offers through the program and I wanted something that would be individual to me and my goals and lifestyle.>I have lost close to 40 pounds so far.  More importantly, I have really worked to change my mindset and I am developing a healthy relationship with food.  I know that mindset is the biggest piece of losing and maintaining weight loss and I have made really great strides with this.  During the 6 months of the program, I have been able to navigate vacations, social occasions, holidays, and some very stressful times and have still consistently lost or maintained my weight without feeling deprived.  I have also learned to eat only when I am hungry and not because it is a designated mealtime and to eat a quantity that satisfies me and doesn’t make me feel stuffed.  I have also learned to celebrate my successes and realized that big change doesn’t happen overnight, but comes from consistently making small changes that eventually add up to big change. I have also learned that perfection at all times is not reality and it isn’t necessary or realistic for me when it comes to making lasting changes.


    Check out this awesome 10 week progress picture (over the holidays, no less) of one of my fall one-on-one clients!She was down 15lbs. at the time of this picture and finished our program close to 30 pounds down.During that time she has traveled overseas for business, hosted Thanksgiving, traveled for a week at Christmas, had multiple work events, vacations, and still managed to get these results. You can too.

    More Great Testimonials


    More Great Testimonials
    Apply Here!

    Listen, if you’ve been waiting until the “time is right” to take care of your health, it’s now.

    There will always be something, a wedding, a vacation, a weekend away….but that’s the whole point of this coaching! To teach you that you can learn how to navigate anything life throws your way, and that the only “right time” is right now. You have the opportunity to change your health with one choice. No more waiting around. No more starting over. It’s time to finish strong. And together we will do just that.


    • q-iconIs there a payment plan?

      Yes! The cost is broken down monthly over the course of 6 months, or you can pay upfront and receive a 10% discount.

    • q-iconHow much food prep is involved?

      As much as you want there to be. This is a very individualized program. It doesn’t matter if you prepare and cook every meal at home, or if you eat out for 3 meals a day, we will come up with a strategy that works for you and your lifestyle.

    • q-iconI am a beginner to exercising, in fact I’ve never even picked up a dumbbell, will I be able to handle these workouts?

      Yes. In fact, a lot of my previous clients didn’t even focus on exercise at all, their main focus was on nutrition! I will meet you where you’re at and give you the modifications you need if starting an exercise program is something you want to do. And if you don’t, that’s fine too!

    • q-iconWhat if I find that the program is not a good fit for me? Can I stop early?

      Hopefully we will know if it’s a good fit prior to you joining. I really only want you to commit to the program if you are 100% ready and willing to dedicate the next 6 months to you and your healthy. However, if within the first 2 weeks of the coaching program, you decide that it’s not for you, you can cancel and get a full refund.

    What's My Investment?

    The coaching program breaks down to about $82 per week for a total for $327 per month each month for the 6 months.

    Apply Here!