Unlock Your Full Potential with RX Fitness FUEL
We help you achieve lasting wellness through expert nutrition guidance, fitness tips, and a supportive community.
Join RX FUEL Foundations membership, our group of like minded individuals, for meal ideas, recipes, and accountability to take the guesswork out of nutrition.
Click join now for our membership plans and get a free meal guide with your exclusive invite!
FREE for current one on one clients
who are often covered by insurance at no cost!
Text us "Insurance" to 469-300-1392 for a quote of coverage.
MEET THE FOUNDER & CEO
Marley Oldham Carnes
The Dietitian Who CrossFits - helping you fuel your body, crush your goals, and achieve lasting results that make healthy living feel empowering and attainable.
I'm here to help you take the guesswork out of meal planning and create sustainable lasting results while not feeling miserable or left out.
In our RX Fitness Fuel membership we offer simple, sustainable nutrition strategies to help you feel your best—whether it's weight management, boosting energy, or improving mental clarity.
With over 15 years of experience I understand the unique needs of those looking to perform better and the impact nutrition can make on your health and feeling good in your day to day life.
Registered Dietitian Nutritionist: Expert advice and passionate in helping you build healthy habits that fit your lifestyle and keep you motivated.
CrossFit Level 2 Coach and NSCA Strength Coach: Specializing in fueling CrossFit athletes and gym-goers for maximum performance and recovery.
Master's Degree In Nutrition: Guidance backed by that empowering you to feel confident in your health decisions.
Be the best version of yourself, inside and out!
Designed to provide a strong foundation for your health journey, the RX Fitness FUEL Circle offers expert guidance, community support, and valuable resources to help you reach your goals. It’s the perfect starting point for connecting with others and getting motivated.
Here’s what you’ll get with our subscription program:
Monthly Meal Plans Tailored to Your Goals
Receive personalized meal plans that suit your unique needs, fitness goals, and dietary preferences. Each plan is designed to be realistic, sustainable, and effective for long-term success.
On-Demand Trainings by Marley Carnes
Access to on-demand trainings from Marley Carnes, covering everything from fueling for fitness and recovery to understanding the science of nutrition. Learn from a trusted expert who blends evidence-based knowledge with practical, real-life applications.
Exclusive Accountability Community Group
Join our RX Fitness Exclusive Network to connect with like-minded individuals who are on the same journey. Share your wins, ask questions, and get support from others as you stay accountable and motivated.
Ready to get started?
PRICING
Choose Your Membership
Foundations
$9/month
FREE for 1:1 *clients
*often covered by insurance at no cost!
Start Strong. Build Consistency.
The Foundations Tier is your entry point to a healthier lifestyle, providing essential tools and support to help you establish and maintain effective nutrition habits.
What's Included:
Monthly Wellness Workbook: Each month, receive a thoughtfully crafted guide featuring actionable tips, educational content, and practical exercises to navigate challenges like holiday eating, stress management, and more.
Personalized Action Plans: Implement step-by-step strategies tailored to help you adopt and sustain healthy habits effectively.
Community Support Chat: Engage with a supportive community of like-minded individuals and our team of dietitians to share progress, ask questions, and stay motivated.
Exclusive Discounts: Access special rates on high-quality supplements and lab work to support your health goals.
How You'll Feel:
Empowered, supported, and confident.
With the Foundations Tier, you're not just receiving resources—you're gaining a community and a clear path to a healthier you.
PRO
$29/month
Elevate Your Nutrition Journey
Building upon the solid foundation, the Pro Tier offers enhanced support and resources to help you achieve your health goals with greater confidence and clarity.
What's Included:
Everything in Foundations, plus:
Monthly Meal Plans: Structured meal plans tailored for performance, weight management, and optimal health, removing the guesswork from your daily nutrition.
Bi-Monthly "Fuel Up" Video Guides: Twice a month, gain insights from Marley Carnes, RDN, on topics like hydration strategies, protein optimization, and metabolism enhancement.
Quarterly Live Educational Webinars: Engage in live sessions with Marley, covering in-depth nutrition topics, and access recordings anytime to revisit the material at your convenience.
Group Office Hours: Participate in monthly group Q&A sessions, providing an opportunity to ask questions and receive support from Marley and the community.
Access to All Past Trainings & Talks:
Explore a comprehensive library of previous seminars and discussions to reinforce your learning and stay informed.
How You'll Feel:
Empowered and informed, with structured guidance and expert support to navigate your nutrition journey.
The Pro Tier is designed to provide you with the tools and knowledge to make sustainable, health-promoting choices confidently.
ELITE
$99/month
Your Personalized Plan.
The Elite Tier is your all-access pass to individualized nutrition support, expert coaching, and ongoing accountability — all designed to get you real results and help you sustain them.
Whether you're training hard, rebuilding your habits, or simply ready to make your health a priority, this plan gives you the highest level of hands-on support.
What’s Included:
Everything in Pro and Foundations, plus:
30-Minute 1-on-1 Virtual Onboarding Call: Start with a intro call led by a Registered Dietitian Nutritionist to set clear, actionable goals tailored to you.
2x/Month Live CHAT Follow-Up Sessions (30min): Stay consistent with bi-weekly live coaching check-ins to review progress, troubleshoot challenges, and keep your plan on track.
Personalized Meal Plan: Receive a fully customized plan based on your unique goals, lifestyle, food preferences, and schedule.
Elite Discounts: Enjoy premium discounts on supplements, lab panels, food sensitivity tests, and even genetic testing to dig deeper into your health.
Exclusive App for Progress Tracking + Priority Access: Track your monthly metrics (body comp, SMART goals, or symptoms) and get priority response time from your dedicated RD.
How You’ll Feel: Focused. Accountable. Supported. With Elite, you’re no longer doing this alone. You’ll have a dedicated expert walking beside you — adjusting your plan, keeping you motivated, and helping you hit your goals faster and more confidently.
💡A 3-month commitment is recommended to see lasting results.
Bonus!
Curious if you qualify for
free 1-on-1 sessions covered by insurance?
📲 Text “INSURANCE” to 469-300-1392 for a quote of coverage.
Do you struggle with staying consistent, even when you know what to do?
At RX Fitness Fuel, we believe that true success in health comes from both understanding what your body needs and applying that knowledge consistently. Our memberships provides you with the tools, resources, and support you need to bridge the gap between knowing and doing.
RX Fitness Fuel steps in to ensure you are empowered with both the knowledge and the accountability to reach your goals.
Do you feel like you’ve tried everything but are still not seeing the results you want?
With RX Fitness FUEL, you’ll have a clear roadmap to your goals, whether you want to lose weight, improve athletic performance, or simply feel more energized. You’ll finally see the results you deserve.
Have you ever tried following a generic nutrition plan, only to find it didn’t work for your unique needs?
Upgrade to the PRO or ELITE memberships and unlock live group sessions and one-on-one live chat sessions with a registered dietitian nutritionist.
These plans offer you even more personalized nutrition strategies, custom meal planning, and direct support for more accountability and guidance to meet your goals.
Frequently Asked Questions
What is RX Fitness Fuel?
RX Fitness FUEL is a monthly membership coaching and meal planning program focused on helping you become the best version of yourself inside and out!
Is this a monthly subscription?
RX Fitness FUEL membership and meal plan program is a monthly subscription. That means you’ll get new content and fresh resources each month for as long as you are a member.
How do I access the resources?
Once you join RX Fitness FUEL, you’ll get a login and password to the private members' site. All of the videos, master classes, and handouts and resources are hosted there. Additionally, we have a Meal Planning software program to tailor you recipes and meals as well as an exclusive network where members can interact with each other.
How can I cancel my membership?
RX Fitness FUEL membership and meal planning program is an ongoing monthly program. If you want to cancel your membership, you can do that anytime in your payment preferences or email [email protected] if you need additional support. Keep in mind, you’ll lose access to all of the Master Classes, Resources, Live Sessions, and Exclusive Network.
With the RX Fitness FUEL, you’re stepping into a community where nutrition becomes second nature and your health goals become achievable realities.
If interested in insurance covered sessions text "insurance" to: 469-300-1392
