Courtney Armstrong

Courtney Armstrong

Courtney Armstrong is a Registered Dietitian and experienced nutrition counselor. It is Courtney's vision for her clients to live in the freedom of a healthy relationship with food while harnessing the power of balanced nutrition. She believes that empowering clients to apply evidenced based nutrition practices in an individualized style opens the door for clients to embrace lifestyle changes that will be maintained.

Courtney has the knowledge and experience to provide both individual and group nutrition counseling to clients of all ages and backgrounds. She currently focuses on outpatient medical nutrition therapy at Simply Nutrition where she specializes in pediatric and adult eating and feeding disorders, disordered eating, weight management, and family wellness plans. Courtney also works with clients to help manage specific medical conditions including polycystic ovarian syndrome, diabetes, and heart disease. She is empathetic to those struggling with nutrition related issues and strives to meet each client where he or she is in the process of change.

Courtney completed her Bachelor of Science degree in Human Nutrition and Food Science at Georgia Southern University. She later received her Master of Science in Nutrition at the University of Central Oklahoma where she completed her dietetic internship at OU Medical Center. She has held positions at major medical centers and eating disorder treatment centers, but her passion is in outpatient. She values the relationship she builds with each client.

Courtney takes pride in providing evidence based treatment and ensures Simply Nutrition is offering innovative information to the South Carolina community by regularly attending international conferences and receiving supervision from national leaders in the field. She maintains professional memberships including the Academy of Nutrition and Dietetics, Sports Cardiovascular and Wellness Nutrition (SCAN), Nutrition Entrepreneurs (NE), and Academy of Eating Disorders (AED). She has been active on the state level as the Consumer Protection Coordinator for the South Carolina Academy of Nutrition and Dietetics and as an invited speaker at South Carolina Eating Disorder Association meetings. She also takes a special interest in acting as a preceptor for dietetic interns from around the nation.

When she’s not working, you can find Courtney indulging in her love for travel or exploring South Carolina’s local markets and newest restaurants.


Emily Gargis

Emily’s interest for nutrition and advocacy for eating disorder recovery developed out of her own recovery journey toward a positive relationship with food and body image. Her energy and support for Health At Every Size (HAES) and Intuitive Eating expanded even further after navigating her diagnosis of PCOS. After earning her Bachelor’s and Master’s degrees from the University of Memphis, she began her career as a Registered Dietitian in eating disorder nutrition therapy with Simply Nutrition. Later, she began working part time as a clinical dietitian in both the oncology and surgical units.

Emily is a firm believer in that all foods fit and that food is not of moral value (no “good” or “bad” foods), but for nourishment and enjoyment.

As a military spouse enjoying the travel it brings every couple years, Emily is currently living in Washington State and is seeing clients virtually! When she isn’t working, you can find Emily reading, exploring nature trails with her husband and pup (Brie), planning her next social outing, or tending to her plants.

Emily enjoys working with adolescents, college students, and adults. Her areas of focus include: Disordered Eating/Eating Disorder Recovery, Intuitive Eating, PCOS, Nutrition Therapy for General Wellness & Prevention, and Meal/Snack Planning.


Mackenzie Harrell

Mackenzie Harrell

Mackenzie has her Bachelor of Science degree in Human Nutrition and Dietetics from The University of Arkansas, and completed her dietetic internship right down the road at The Medical University of South Carolina. Here she gained valuable experience treating patients with a wide range of medical conditions. Mackenzie received the award for Outstanding Dietetic Student of the Year from both the Charleston Trident Dietetic Association and the South Carolina Academy of Nutrition and Dietetics in 2022.

Mackenzie is passionate about helping people create a positive relationship with food and their body. She strives to provide clients with nutrition counseling that is compassionate and engaging while creating practical goals that will help you have attainable and long-lasting lifestyle change. Her personal experience finding freedom with nutrition while recovering from an eating disorder, grew her eagerness to empower and assist others in their own journey.

She truly believes that using Intuitive Eating and Medical Nutrition Therapy in conjunction with supportive counseling can help people release food guilt and put joy back into eating.

Mackenzie enjoys working with Children, Teenagers, college students, and Adults. Her areas of focus include: Disordered Eating/Eating Disorder Recovery, Intuitive Eating, Chronic Dieting, Weight Management, and Digestive Issues.

When Mackenzie isn’t working she is most likely reading, cheering on her alma mater, playing pickle ball, or enjoying time with friends at the beach. She also loves to travel to new places and has done nutrition work abroad on mission trips to Belize and Kenya.


Carly Jones Sawyer

Carly Jones Sawyer

Carly is our administrative assistant here at Simply Nutrition. She is originally from Columbia and went to Clemson for her Nutrition degree. Carly got her personal training certificate recently and is now in Charleston and has recently joined the Simply Nutrition team. She believes in using intuitive eating and a balanced diet in order to achieve a state of physical and mental well-being.