Denise Groothuis RD

Chief Operating Officer, CPT, RD

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Denise has a BS from Cornell University and an MS in Applied Physiology and Nutrition from Teachers College, Columbia University. She is currently both a certified personal trainer and a licensed Registered Dietitian (RD). Denise has been practicing in the nutrition field since 2000. She has worked in a variety of settings ranging from hospitals and nursing homes to private practice. She has experience with weight loss, cachexia, diabetes, renal disease, heart disease, cancer, dysphagia, Parkinson’s Disease, and Alzheimer’s.

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After an injury and long recovery, Denise became interested in personal training, and she decided to become certified in order to help better educate others about being fit and functional. Denise is certified by the National Federation of Professional Trainers (NFPT) and has worked as a personal trainer for the last five years.

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Currently, she manages THE ARENA and is in charge of all daily operations. She also oversees the blog, educational articles, social media and marketing.

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