Your Partner in Fueling
Meet Sara Arnold
MS | RD | CSSD | LD | acsm-cpt
Hi, I'm Sara, the founder of KC Performance Nutrition. As a sports dietitian with over half a decade of experience, I'm passionate about empowering athletes like you to reach your full potential. My expertise focuses on performance nutrition while also addressing disordered eating, eating disorders, under fueling, and Relative Energy Deficiency in Sport (REDs) - blending evidence-based strategies with a compassionate approach.
My mission is to help you fuel your passion, optimize your performance, and build a supportive relationship with food, movement, and your body. Wherever you are in your journey, I'm here to guide and support you.

Our services
Fueling your performance, restoring your strength
01
Discovery Call
We'll start with a complimentary discovery call to explore your goals, challenges, and needs. This conversation helps us understand how to best support you and ensures we're the right fit to help you achieve your performance and nutrition goals. In this call, we will discuss the right package option for you.
02
Comprehensive Performance Assessment
We start your package with a full evaluation of your nutrition, lifestyle, and performance goals. This includes an in-depth 90 minute consultation with targeted assessments to further understand your needs.
03
Personalized Nutrition Strategy
Based on your assessment and chosen program, we'll develop a customized plan completely tailored to your unique needs. Your plan includes evidence-based fueling guidance and any other necessary guidance to best support you.
04
Ongoing Support
The journey doesn't end with your plan. Stay connected through a subscription-based support model that includes regular check-ins and ongoing guidance. You'll have access to tools and resources to help you stay accountable and sustain your success.


“Nutrition is more than what's on your plate. It's about giving your body the tools to perform, thrive, and step into your strongest self - on and off the field, all without overthinking food.”
FAQs
The Most Common Questions
What's the difference between a dietitian and nutritionist?
A Registered Dietitian (RD) is a highly trained nutrition expert with a master’s degree, 1,200 hours of supervised practice, and has passed a national board exam. They must stay up to date with the latest science through ongoing professional education. In contrast, the title “nutritionist” isn’t regulated, and anyone can claim it without formal qualifications or training.
Who do you work with?
We see athletes of all ages, genders, ethnicities, identities, and sport backgrounds.
How do I know if I need your services?
You might be a good fit to work with us if:
• You feel chronically fatigued or notice that your training and recovery are not improving despite your efforts.
• You’re struggling to balance your energy needs with the demands of your sport and daily life.
• You’re a young athlete navigating the challenges of growth, development, and sport performance.
• You want help addressing or preventing issues related to low energy availability (LEA) or relative energy deficiency in sport (RED-S).
• You value a holistic approach to health and performance that respects your individuality as an athlete.
• You’re an athlete who suspects or has been diagnosed with an eating disorder.
• You’re an athlete looking to cultivate a more supportive relationship with food and your body.
• You’re seeking a judgment-free, supportive space to explore and address nutrition challenges.
Do you take insurance?
Our goal is to ensure the highest quality and most personalized care that is not at the liberty of insurance companies, therefore we do not accept insurance. A superbill can be requested for submission to your insurance company.
What can I expect during my discovery call?
Your discovery call is a 20-minute phone conversation where we’ll discuss your goals, challenges, and how my services can support you. It’s an opportunity to ask questions and ensure we’re a good match before getting started.
Can I just do the subscription without opting for the package?
Our subscriptions are designed to provide ongoing support and maintenance, but starting with a package ensures that you receive the foundational guidance and personalized strategies needed to address your unique goals. Packages include comprehensive assessments, customized plans, and structured sessions to establish a solid framework for your nutrition journey. Without this initial work, a subscription may lack the depth and tailored approach necessary for meaningful progress. Starting with a package allows us to build a strong foundation, ensuring your subscription is as effective and impactful as possible.
How do I know if I need sports nutrition or eating disorder services?
If your primary concern is optimizing performance or recovery, sports nutrition is the best fit. If you’re experiencing challenges with food, body image, or eating behaviors, our disordered eating and eating disorder services provide the support and strategies you need. Unsure? Book a discovery call to figure out the right service for you.
Can you work with my coach, therapist, or medical team?
Yes! We value collaborative care and can coordinate with your team—including coaches, therapists, or medical professionals—to ensure an integrated and comprehensive approach to your goals.