our approach
A focus on progress without restriction
Individualized nutrition care
We move away from templates and rigid plans to create nutrition strategies that are designed specifically for you.
Evidence-Based, Human-Centered
We blend clinical expertise with an understanding of the human experience, translating evidence into guidance that feels supportive and practical.
Weight Inclusive
We are Health at Every Size® providers and do not prescribe weight loss. Progress is supported through nourishment, not weight manipulation.
Come as you are
You are welcome exactly as you are. Sessions are a judgement-free space where your experiences are respected and your care is centered in trust and compassion.
Our services
When we work with you, we look beyond performance metrics alone. Your care is personalized to support your health, your relationship with food, and the role nutrition plays in your daily life.
About Sara Arnold
Having gained advanced nutrition education at Missouri State University, Abilene Christian University, and University of Central Missouri, Sara now leads KC Performance Nutrition in providing nutrition support that directly addresses performance and health concerns.
Hear from happy clients
I just finished a 50 mile race and came in second place, which 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!
Kirsten C.
My performance was declining because I wasn’t eating enough. It wasn’t until I entered residential treatment for my eating disorder, that my mindset changed. Since meeting with Sara, I’ve been able to show my true self through both my ups and downs. She has extensive nutrition knowledge and shares it through an individualized approach.
Aubrey W.
Sara is amazing! I appreciate how much she has taught my daughter in such a short amount of time. My daughter feels comfortable talking with her and has enjoyed meeting with her.
Kathy H.
I'm incredibly lucky and grateful to have Sara on my team. My anxiety and relationship with food have improved so much since working with her!
Collin S.
The service was very timely and helpful. Sara was very quick to respond when I would reach out to her and was always professional in appointments.
Steven P.
Sara's phenomenal, flexible, and knowledgeable. I'm a college football player, and she was always willing to try her to best to accommodate my schedule. I needed to gain weight for football, and she helped to do so in a way that made sense for my lifestyle and preferences.
Cash M.
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.
Nate P.
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.
Lora K.
I thought Sara was friendly and thorough. We appreciated her spending time with us.
Greg S.