Work With Sharon Chamberlin
In 2009, I earned my certifications as a personal trainer and fitness nutrition coach and founded Catalyst 4 Fitness with one goal: help health-conscious people fuel their bodies better and perform at their best.
In 2012, I left the corporate world behind and went all in — opening a fitness studio and building a business around the thing I was already doing before sunrise every day anyway.
Since then, I’ve helped hundreds of women and men get healthier, lose weight, feel better, and finally like what they see in the mirror.
My Journey
During my 20 years in the corporate world, my days were packed with meetings, phone calls, and being on call around the clock. I woke at 5 a.m. to get a workout in before the day started and was in bed by 9:30 p.m. Weekends were for meal prep. Sound familiar?
I listened. I watched. And I kept hearing the same struggles from the people around me — trying to eat better while balancing the demands of life, not having time for healthy meals, dreading the drive-thru, and not knowing which supplements to take or what to eat after a workout. Even the people making it to the gym were often making food and supplement choices that worked against them.
I looked at what was on the market and wasn’t impressed. The supplements had poor absorbability. The protein bars were nutritionally underwhelming. I knew I could do better.
So I did. I launched a supplement line built around bioavailability — what your body can actually absorb and use — and developed the Catalyst Protein Bar: nutritionally sound, truly filling, low enough in calories for weight loss, and genuinely delicious.
In 2021, I became a quarterfinalist in the international Ms. Health and Fitness competition sponsored by Muscle & Fitness Hers — placing in the top 1% of all competitors worldwide.
In 2026, Catalyst 4 Fitness was named one of the Top 10 Best Fitness Industry Consulting Services in the USA by Digital Reference — a list built on research, real client results, and proven strategy, not marketing. It’s recognition I’m proud of, but the number I’m proudest of is my 91.5% client retention rate, because that one comes straight from the people I work with.
How We Work Together
Catalyst 4 Fitness is based in the Greater Tampa area, and I coach clients across the country. Wherever you are, there’s a way to work together that fits your life:
- Live virtual training sessions, coached in real time
- On-demand fitness programs built around your goals, your schedule, and the equipment you have
- Online nutrition coaching with personalized meal planning that works around your real life, your preferences, and any injuries or medical needs
- My full line of performance supplements and the Catalyst Protein Bar, to fuel all of it
I know what it takes to stay consistent, fuel smart, and build something that lasts. Whether you want to train with me in real time, follow a plan on your own schedule, or finally get your nutrition dialed in, I bring both the fitness expertise and the business discipline to help you do the same — from anywhere.
From a Few of My Clients…
ACE Certified Personal Trainer • NESTA Fitness Nutrition Coach • NESTA Physique & Figure Specialist
• Metabolic Training Specialist • SBA-Certified Woman-Owned Small Business (WOSB)
