Online Coaching✦ Strength Training✦ Nutrition Support✦ Body Recomposition✦ Weekly Check-ins✦ Kasey K Fitness✦ Online Coaching✦ Strength Training✦ Nutrition Support✦ Body Recomposition✦ Weekly Check-ins✦ Kasey K Fitness✦
Kasey Kretsch — Personal Trainer & Metabolic Specialist

Where strength
meets strategy

Personalized fitness, nutrition, and habit-driven programming. Helping women reframe fitness from a fat loss fixation to a muscle-first, energy-boosting approach.

Apply for coaching →
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2016 Coaching Since
ISSA + NASM Certified Personal Trainer
Metabolic Specialist
Strength✦ Nutrition✦ Confidence✦ Community✦ Results✦ Accountability✦ Progress✦ Strength✦ Nutrition✦ Confidence✦ Community✦ Results✦ Accountability✦ Progress✦
What Working Together Looks Like

I help you build a strong,
lean body — and a regulated metabolism

I guide women through a true body recomposition journey. I focus on sustainable habits, strength training, and eating for energy to increase metabolic health. Real change doesn't happen overnight — and I specialize in long-term coaching because I'm your biggest cheerleader every step of the way.

💪
Your gym work finally shows on your body
⚡
Energy that lasts all day — no more crashing
🪞
Look in the mirror and actually feel proud
Sound familiar?

I can help you if…

😔

You feel like the work you're doing in the gym isn't showing on your body

🍽️

You're always craving food and never feel satisfied after meals

🏃

You keep adding more cardio because fat loss isn't happening fast enough

🔋

You're struggling with low energy every day and don't understand why

strength
"

Kasey Kretsch has given me my life back. I'm able to chase my toddler around and be a more patient, loving wife because I do not feel awful anymore. I love you, Kasey!

— Coaching Client

The Process

How it works

01
Apply
Fill out a short form so I can learn about your goals, your schedule, and where you're starting from.
02
Connect
We hop on a quick call to make sure we're a good fit and figure out exactly what you need.
03
Get Your Plan
I build your custom training and nutrition plan based on your goals, lifestyle, and what actually works for you.
04
Keep Growing
Weekly check-ins, ongoing adjustments, and real support as you make progress and life changes.
Not sure where to start?

Let me point you in the right direction

Answer one question and I'll show you exactly what fits.

Ways to Work With Me

Find the right fit for
where you are right now

Now Open
REFINED — 1:1 Coaching
For women ready to get serious about training, nutrition, and building a body they're proud of.
  • Custom training program updated regularly
  • Macro & nutrition coaching built for your life
  • Weekly check-ins and real-time support
  • Full accountability — not just a plan
Apply Now →
01
Popular
Macro Setup
Not ready for full coaching? Get your macros dialed in and actually understand how to use them.
  • Custom macro targets set for your goals
  • Learn to track without obsessing
  • One-time setup — yours to keep
Get Started →
02
Coming Soon
12-Week Workout Program
A structured, self-paced training plan you can run on your own schedule.
  • 12 weeks of progressive programming
  • At-home or gym options
  • Exercise demos included
Join the Waitlist →
03
Free
Not Sure Yet?
Take the quiz above or send me a message — I'll point you in the right direction, no pressure.
  • No commitment required
  • I'll respond personally
  • We'll figure out what fits
Send a Message →
04
Client Stories

Real results, real people

★★★★★
"Life changing really. I couldn't believe my progress pictures. Thank you!"
— Coaching Client
★★★★★
"Your workouts have literally been magic for my body. I feel confident as we get closer to the wedding that I will love how my dress looks, thanks to you!"
— Coaching Client
★★★★★
"Today I reached for a pair of jeans I haven't worn in a while... they slid on me so nicely and buttoned without a problem. I could cry! These jeans were always tight from bloat."
— Coaching Client
★★★★★
"I felt noticeably stronger this workout! You are a wizard Kasey!"
— Coaching Client
★★★★★
"The best and most confident I've felt during a workout in a LONG time!"
— Coaching Client
★★★★★
"This is one of my fave workouts! Used to hate upper body days because I was so weak. But really loving these days and pushing myself!"
— Coaching Client
★★★★★
"Kasey Kretsch has given me my life back. I'm able to chase my toddler around and be a more patient, loving wife because I do not feel awful anymore."
— Coaching Client
★★★★★
"Feeling the food I'm eating is fueling these lifts! This was hard but so worth it."
— Coaching Client
★★★★★
"Life changing really. I couldn't believe my progress pictures. Thank you!"
— Coaching Client
★★★★★
"Your workouts have literally been magic for my body. I feel confident as we get closer to the wedding that I will love how my dress looks, thanks to you!"
— Coaching Client
What I Talk About Most

Here's what I share and
where to find more

🍽️
Eating enough
Most women are undereating and don't even know it. I talk about fueling your body for the results you actually want.
🏋️
Lifting basics
Training doesn't have to be complicated. I share simple, effective approaches to building strength that lasts.
🧠
Mindset shifts
Progress isn't just physical. I talk about the mental side of fitness — breaking cycles, building consistency.
🌿
Sustainable habits
No crash diets, no 75-hard madness. Just habits that fit your real life and compound over time.
📷
Add photo here
@kaseykfit
Meet Your Coach

Hiiiiiii,
I'm Kasey 🥰

I've always believed fitness is about more than just physical change. Growing up as an athlete, I loved pushing my limits — but it wasn't until I was teaching high school English that I realized how much fitness transformed my mindset, stress tolerance, and confidence.

I started coaching women in 2016 while balancing my teaching career, and took it full time by 2020. In 2023, I stepped into in-person personal training and fell in love with the hands-on work of helping clients transform physically and mentally.

Now I'm launching Refined — my 1:1 online coaching program focused on building strength from the inside out. Fitness is my way of creating a life where I can show up stronger, live longer, and move through challenges with resilience.

My motto is simple: fitness can change your life.

ISSA Certified NASM Certified Metabolic Specialist
Work with me →

Interested in coaching?

Start here and I'll reach out personally — usually within 24 hours. No sales pressure, just a real conversation about your goals.