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Fueling performance. Restoring strength.

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your partner in fueling

Meet Sara Arnold

MS | RD | CSSD | LD | acsm-cpt

Hi, I'm Sara, the founder of KC Performance Nutrition. I'm a board-certified sports dietitian and eating disorder specialist located in Overland Park, KS offering virtual nutrition coaching to athletes residing in the states of Kansas and Missouri.

My expertise focuses on performance nutrition while also addressing disordered eating, eating disorders, underfueling, and Relative Energy Deficiency in Sport (REDs). I understand the unique pressures athletes face, and I combine evidence-based strategies with compassion to support both your body and mental health.

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Sara Arnold, Kansas City sports and eating disorder dietitian and founder of KC Performance Nutrition

Our services

Fueling your performance, restoring your strength

Sports Nutrition

Personalized fueling strategies for athletes at all levels, focusing on enhancing both performance and well-being.

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Disordered Eating

Compassionate nutrition support for athletes experiencing disordered eating and eating disorders.

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How it works

Your Personalized Nutrition Journey

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01

Complimentary Discovery Call

We'll start with a complimentary discovery call — a chance to talk through how we can help. We’ll explore whether our Sports Nutrition or Disordered Eating track is the best fit and walk through how our coaching memberships work. No commitment, just a conversation to see how we can best support you.

02

Comprehensive Assessment

Once you’ve enrolled in your chosen membership, we’ll schedule an initial consultation with targeted assessments to further understand your nutrition needs. This assessment lays the foundation for a plan built entirely around you.

03

Personalized Fueling Strategy

After your assessment, we’ll co-create a plan tailored to your needs, whether you’re chasing peak performance or working to heal your relationship with food (or both). Your strategy will be rooted in evidence-based guidance and adjusted to meet you where you are — and where you're going.

04

Ongoing Coaching

Real change takes time, and you won’t do it alone. Through our coaching memberships, you’ll receive consistent, high-touch support with regular check-ins, messaging access, and evolving tools that keep you accountable and aligned with your goals.

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Fuel is the foundation. Performance is the outcome. Strength is what you reclaim along the way.

TESTIMONIALS

Hear it from those who've taken their own journey

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"I just did my big race of the season, a 12-hour race, yesterday. I went 50 miles, which was my goal! I came in second place, and it was enough to put me on the top 10 list in my age group for 12-hour races for Kansas state ultramarathon records. I couldn’t have done this without the lessons Sara taught me this year. Thank you for teaching me about nutrition and the value of fueling my body! I feel strong!"
Needed help with...
Performance Optimization
Reds
“Sara was kind and knowledgeable. She listened to our concerns, analyzed the data and provided good recommendations to assist with my son’s nutritional needs for optimal athletic performance.”
Needed help with...
Gastrointestinal issues
“Sara is awesome. She took the time to interview my son and knew we needed a cardiologist. Without her we wouldn’t ever got him going in the right direction.”
Needed help with...
REDs
weight restoration
“I thought Sara was friendly and thorough. We appreciated her spending time with us.”
Needed help with...
REDs

FAQs

The Most Common Questions

What’s the difference between a dietitian and a nutritionist — and why does it matter?

Who do you work with?

How do I know if these services are right for me?

How do I know if I need sports nutrition or eating disorder support?

What happens during a discovery call?

Do you offer virtual sessions?

Do you take insurance?

Can you collaborate with my coach, therapist, or doctor?

Let’s get to work

Ready to Feel & Perform at Your Best?

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