Nutrition is NOT the missing link to your performanceIt is the FOUNDATION.
Catherine Hammer
Registered Dietitian Nutritionist
Growing up as a multi-sport athlete showed me early on that food is one of the most powerful tools an athlete has, which led me to study Nutrition and Dietetics at West Chester University while also playing NCAA DII softball.
After graduating, I earned my Master’s in Exercise and Nutrition Science at the University of Tampa and completed my Dietetic Internship at Virginia Tech, all of which deepened my passion for performance nutrition.
My career has allowed me to work with a wide range of athletes and high performance environments, including two seasons with the Pittsburgh Pirates major and minor league teams, high school athletes through virtual nutrition coaching with IMG Academy, and Special Operations military personnel. My biggest career milestone was my 5 years spent at The University of Pennsylvania, serving as the Head Sports Dietitian where I supported all thirty three Division I teams and built systems that elevated athlete health, fueling, and performance.
In addition to all of this,I have also earned the Certified Specialist in Sports Dietetics credential which is recognized as the Gold Standard in the field.
Today I bring all of these experiences together to help athletes understand their bodies, fuel with confidence, and unlock their full potential.
My strongest passion in this field is to help athletes understand the importance of fueling their bodies properly so they can reach their full potential. Although I specialize in working with elite athletes, I also welcome clients who are active individuals with fitness goals of their own.
- Former collegiate athlete
- 7+ years of experience working with elite athletes
- Certified Specialist in Sports Dietetics
My approach isn’t to create a “perfect” meal plan for you. I don’t believe perfect exists in the ever changing environment of busy active individuals. Instead, I educate you on the most optimal fueling choices in any given environment. Whether you are in the offseason and have daily access to a kitchen and time to cook or if you are in season and have to rely mostly on fueling on-the-go, I will help you tailor a nutrition program that suits your needs, goals, and preferences.
Madi Sisz
Registered Dietitian
As a former collegiate athlete at West Chester University, Madi has always had a deep-rooted passion for performance, movement, and healthy living. She earned both her Bachelor’s and Master’s degrees from West Chester University, where she also completed her dietetic internship, further deepening her knowledge and commitment to the field of performance nutrition. She is currently one of the sports dietitians at Drexel University Athletics, working with Division I athletes from over 15 teams.
Madi’s athletic background sparked a lifelong interest in how nutrition fuels the body, particularly in the areas of running performance and female hormonal health. Through her experience with D1 athletics at Drexel University and the University of Pennsylvania, she is passionate about helping others achieve their health goals through personalized, science-backed nutrition strategies. Whether you’re an athlete looking to optimize performance or someone striving for better energy and well-being, Madi is here to support your journey toward an active, balanced lifestyle.
Explore Services
To learn more about how I can support you, visit our Work With Me page for a comprehensive overview of what we offer. Let us help you achieve your peak performance and well-being!