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Meet the staff

Josh Chrestman

Owner & Personal Trainer

Josh is a native of Sandwich, IL and founded JC Health & Fitness in 2007. He was a wrestling state champion in high school and played Division I football, which lead him to continue his love for sports with his degree in Exercise Science. It was at that time, he realized he could make a bigger impact in many communities by giving people a higher level of health and wellness, in a wholistic package with fitness and nutrition. Fast forward, Josh has been a staple in multiple communities and people’s life’s journeys for over 13 years.

“I have always seen the need to give people, athletes, clients something greater, a better experience, a bigger impact than anything that I was ever exposed to.”


Mandy Denny

General Manager and Coach

Mandy is a native of the Sandwich community, where she continues to reside with her family. She continues to hold track and field records at Sandwich High School, one being the only Female State Champion in the history of the school. She continued her athletic career at North Central College, where she graduated with a Sports Medicine degree before completing her Master’s degree in Exercise Physiology. Mandy continued her love of education as a professor for 10 years at North Central College before joining the JC team!

“I always love seeing the true potential in every person, even when they don’t see it in themselves, and pushing them to experience something greater than they ever imagined.”