About Against The Grain STL
The story behind the mission to transform lives through sustainable health.
The Journey
Meet Javier Mariano
I am an experienced functional nutrition coach and personal trainer, passionate about helping people feel their best. My journey into health and wellness wasn’t a straight path — it was born out of personal struggle and a deep desire to find real solutions.
With a background in culinary arts and over a decade of experience in functional nutrition and personal training, I’ve developed a unique approach that meets clients where they are. I don’t believe in one-size-fits-all solutions or restrictive diets that leave you miserable.
Instead, I focus on creating personalized, sustainable plans that integrate seamlessly into your real life. My clients are typically adults over 40 who are tired of the yo-yo dieting cycle and ready for a lasting change. Together, we work on building strength, improving nutrition, and creating habits that stick.
Every person I work with has a different story, different challenges, and different goals. That’s why every plan I create is as unique as the person following it. My mission is to empower you to take control of your health and feel confident in your body — at any age.
What We Stand For
Our Core Values
Health First
Every decision we make prioritizes your long-term health and well-being.
Sustainability
We build habits that last a lifetime, not programs that end in 30 days.
Personalization
Your body is unique. Your coaching plan should be too.
Results-Driven
We measure success by real outcomes — not just numbers on a scale.