Cancer Treatment Centers of America

Sharon Day, RD, MBA, CSO, CNSC

Chief, Division of Nutrition, CTCA & Director of Quality of Life

Western Regional Medical Center

"What makes the nutrition therapy programs at Cancer Treatment Centers of America unlike most hospitals is that patients receive far more education."

- Sharon Day, RD, MBA, CSO, CNSC
Sharon Day, RD, MBA, CSO, CNSC


  • MBA - Arizona State University, Phoenix, AZ
  • BS, Dietetics - Madonna University, Livonia, MI


  • Dietetics - University of Wisconsin, Madison


  • Registered Dietitian
  • Certified Nutrition Support Clinician
  • Certified Specialist in Oncology Nutrition

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For Sharon Day, working at Cancer Treatment Centers of America® (CTCA) is all about taking care of patients as if they were members of her own family. At CTCA®, it’s the only way we care for our patients—every day. As Chief of the Division of Nutrition for CTCA and Director of Quality of Life at CTCA at Western Regional Medical Center (Western), Day oversees a team of clinical oncology dietitians. Together, they provide nutrition support and counseling to patients using a proactive approach.

Day is a registered dietitian with national credentials in metabolic nutrition support. She earned a bachelor’s degree in dietetics from Madonna University in Livonia, Michigan, and completed a dietetic internship at the University of Wisconsin, Madison. She also a Master of Business Administration from Arizona State University.

Day has expertise in the nutritional management of patients undergoing chemotherapy, radiation therapy and stem cell transplantation. She is also a member of the American Society for Parenteral and Enteral Nutrition.

Prior to joining Western, Day spent several years on the nutrition teams at both CTCA at Midwestern Regional Medical Center and CTCA at Eastern Regional Medical Center, where she served as Director of Nutrition.

According to Day, it is extremely important for people fighting cancer to meet with a nutritionist. “It’s well documented that 80 percent of all cancer patients have signs and symptoms of malnutrition. We also know that, based on that, as little as a five percent weight loss in one month can decrease someone’s tolerance to treatment, or it can alter their treatment plan altogether," she says.

At Western, Day and her team do everything possible to make sure patients are nourished so they feel strong enough to receive the treatments recommended by their oncologist. In addition, the nutrition plan Day develops for every patient complements and supports all of their cancer fighting therapies.

One of the unique tools Day uses to determine if patients are receiving the nutrients they need is body composition analysis. It measures the different components of each patient’s weight and helps Day determine if he or she is gaining much-needed muscle mass—not fluid or fat.

Day and her team at Western are committed to an individualized, evidenced-informed, proactive nutrition approach. She says her first goal is to manage her patients’ nutritional needs. Furthermore, she teaches patients how to apply nutritional information to their everyday lives to make healthy dietary choices.

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