About Us

The Core Diet for Athletes was developed 10 years ago by QT2 Systems coach and founder Jesse Kropelnicki. The Core Diet was designed to help athletes live, train, and compete at their optimal level. Through proper nutrition that includes nutrient rich foods consumed at the right time, the Core Diet will have you performing and living at your very best. You really won't believe how good you feel!

The Core Diet is focused around those foods which are the the most nutrient dense, and critical for athletes to focus on to improve performance, improve health, and reach, or maintain body composition. The Core foods, lean meats, fruits, veggies, nuts, seeds, lean dairy, and legumes, are the backbone to the program. Other less nutrient dense foods serve a specific purpose and are timed to provide athletes a benefit to their training, and decrease the storage of unwanted body fat.

At the Core Diet we believe it is not just important to know what to eat, but to know why you are eating it. Our growing community of athletes is a fun, energetic group, all looking to improve their nutrition, and make progress! Our registered dietitians will give you the tools you need to make that progress. Whether it be to maintain an already healthy weight, lose weight, or fuel training and racing, the Core Diet can provide you with a plan that suits your individual needs.

Meet Our Staff

Jesse Kropelnicki
Founder of the Core Diet & QT2 Systems, Ironman Triathlete, and elite level triathlon coach.
Christine Kropelnicki
Ironman Triathlete and Future Registered Dietitian.
Jaime Windrow
Ironman Triathlete, triathlon coach, personal trainer, and Registered Dietitian.
Rachel Froehlich
Triathlete, marathoner, and Registered Dietitian.

Anne Rollins
Triathlete, Marathoner, fitness enthusiast, and Registered Dietitian.


Rachel Gargano
Triathlete, Marathoner, and Registered Dietitian.

Brooke Gowdy
Experienced Long Course Triathlete, and Registered Dietitian.