Build a Strong Body and Balanced Blood Sugar Without Extremes
Personalized, data-driven nutrition with CGM and sustainable strength. Stop dieting and step into a lifestyle you love.
Kayla Girgen, RD, LD, CPT
Registered Dietitian, Personal Trainer, and Author of Ruck Fit
Ruck Fit shows you how to build strength, resilience, and improve your metabolic health using one of the most underrated exercises: walking with weight.
It’s simple. It’s effective. And it works.
You’re Not Failing at Fitness, You’re Missing the Right Framework
If you’ve tried diets, tracked macros, followed “perfect” plans, and still feel confused or stuck, the problem isn’t discipline.
It’s that generic advice ignores how your body actually responds to food and movement.
Ruck Fit provides insight to build strength and balance blood sugar without extremes, restriction, or burnout.
What You’ll Learn
- How rucking builds strength, metabolic health, and mental resilience
- Why most fitness plans fail and tactics to stick to an exercise routine long-term
- Ways to fuel your body without cutting out foods you love
- How rucking helps reconnect with nature and the impact of social fitness
Why This Book Is Different
Anyone can write a fitness book. Few combine science, lived experience, and real-world application.
I’ve helped hundreds of individuals cut through nutrition noise and escape fitness extremes—without sacrificing results.
Ruck Fit meets you where you’re at to build a sustainable fitness regimen that grows with you as you get stronger.
Stop Second-Guessing Every Bite. Start Feeling Strong Again.
If you’re tired of dieting, confused by conflicting advice, and stuck in your head around food and fitness, you don’t need more willpower—you need clarity and direction.
I help high performers get out of their own way and understand what actually works for them. Using continuous glucose monitoring (CGM) and simple, nature-based movement like rucking, we work together to develop habits that stick.
This Isn’t Another Nutrition Plan. It’s a System.
- Build strength, energy, and confidence with sustainable movement
- Ditch extremes and create habits that fit real life
- Learn exactly how your body responds to food using real-time CGM data
- Stop labeling foods as “good” or “bad”
What Changes When We Work Together
- Rethink your relationship with food. Use data—not guilt—to fuel your body smarter without giving up foods you love.
- Build confidence fast. Know exactly what to eat and how to move without second-guessing every decision.
- Create habits that actually stick. Simple routines that balance blood sugar, energy, and strength without restriction.
- Crush cravings and lose fat. Proven strategies that work with your biology, not willpower.
- Enjoy food guilt-free. Health should feel empowering, not exhausting.
Why Work With Me
Not all “coaches” are created equal. I offer evidence-based guidance, clinical experience, and results you can trust.
- Board-Certified Registered Dietitian with a bachelors degree in dietetics
- Clinically trained and supervised at the Mayo Clinic in Rochester, Minnesota
- 12+ years as an ACE-certified personal trainer
- 10+ years of experience in nutrition coaching, fitness programming, and behavior change strategies
Ways to Work Together
Whether you want a low-cost starting point or high-touch coaching, there’s a path that fits your goals.
Ruck Fit: Build Strength and Endurance by Walking with Weight
Transform your body and mind by walking with weight. Available in paperback, audio, or eBook.
Work 1:1 with Kayla
PRIVATE COACHING
High-touch, personalized support using CGM for clarity, accountability, and results.
Blood Sugar Breakthrough
5-WEEK CGM COHORT
Hands-on group program to understand your blood sugar patterns and build habits that stick.
Sugar + Strength Academy MEMBERSHIP
A no-judgment online community to feel better, get stronger, and balance your blood sugar.
Get in Touch
Have a question about the book, programs, or where to start? Reach out.
