LIVING PROOF

DEEP HEALTH

The Heaviest Weight is Doubt

Living Proof Deep Health. Living Proof Deep Health is built on one truth: the heaviest weight you’ll ever lift is doubt. I help people create real, sustainable change by focusing on the things that matter — nutrition, sleep, stress, recovery, mindset, and daily habits. No gimmicks. No perfection. Just a simple, proven system that fits real life and creates real results.

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Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Nutrition Guidance next-arrow Weight Loss Coaching next-arrow Sleep & Stress Management next-arrow Public Speaking next-arrow

Before

After

About

Jason Kirby, Founder & Coach

My name is Jason Kirby, and for most of my life I struggled with my weight, my confidence, and the quiet  shame and embarrassment that came with avoiding photos, memories, and moments I should have been proud of. 

On December 15th, 2024, I hit a breaking point. No dramatic movie moment — just a simple realization:

I was done living a life that didn’t feel like it was mine.

I set a goal to lose 125 pounds in one year, 350 pounds to 225 pounds. Through discipline, structure, and a relentless commitment to change, I accomplished it a full month early in November of 2025.

That journey wasn’t just physical. I rebuilt my habits, my mindset, my relationship with food, my sleep,  my stress, and ultimately my belief in myself.

+

YEARS OF
SERVICE

+

fitness
trainee

k

hours
TRAINED

+

HAPPY
CLIENT

PN1-SSRC Certified

20+ yrs Public Speaking

130+ lbs Transformation in 1 year

Why Choose Us

What Makes Living Proof Different

Most coaching programs throw information at you, promise quick fixes, or expect you to fit into a rigid  system. At Living Proof Deep Health, everything is built around real life — your routine, your stressors,  your history, and your goals. I coach through experience, not theory. I’ve lived the doubt,  the frustration, the restarts, and the slow rebuild. I know what it takes to change when you’re  overwhelmed, tired, or unsure where to begin. That firsthand understanding shapes every part of my  approach.

Most coaching programs preach perfection.
Most coaches have never lived the struggle.
Most systems don’t consider your actual life.

NOT HERE.

Nutrition Guidance

Personalized, realistic nutrition strategies designed to fit your lifestyle, support your goals, and build long-term healthy habits.

Weight Loss Coaching

A realistic, structured approach to weight loss focused on daily habits, consistency, mindset, and results you can sustain long-term.

Sleep & Stress Management

Practical tools to improve sleep quality, reduce stress, and rebuild the recovery your body and mind rely on.

Public Speaking

Engaging, motivational talks on health, habit change, resilience, and the real-world transformation behind becoming Living Proof.

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Feedback

Sarah

St Charles Missouri

Video Feedback

I came to Jason in a panic right before Thanksgiving. I’ve lost weight this year and I didn’t want to ‘undo’ anything, but my Mom’s green bean casserole is a tradition in our family. I was terrified to even enjoy it because I thought it meant I was ‘falling off.’ Jason didn’t shame me or tell me to avoid it. Instead, he helped me slow down, be intentional, and actually savor the tradition without guilt. We even recreated a lighter version together, and my family loved it just as much as the original. This was the first holiday where I felt in control, not restricted — and honestly, I enjoyed the day more than I have in years.

Keith H.

St. Louis, Missouri

Video Feedback

Jason doesn’t sugarcoat things, but he doesn’t judge either. He helped me stay consistent with small changes that didn’t feel impossible. I’ve lost weight, my blood pressure is down, and I feel like myself again.

Kyle

St. Louis, Missouri

Video Feedback

It’s only been 2 months but what has stood out the most was how honest and relatable he is. He’s been through the stuff himself, so he gets it. His coaching has made the process feel less overwhelming, and for the first time I’m not constantly starting over.

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