Nadia van Dyk

With over a decade of experience in therapeutic nutrition, Nadia specializes in disease-specific dietary management, with a particular focus on critical care, post-operative surgical nutrition, and renal dietetics. Her experience in these high-care environments strengthened her expertise in enteral and parenteral nutrition, ensuring optimal nutritional support for patients in complex medical conditions.

Seeking to expand her impact in clinical dietetics, Nadia founded Somerset Dietitians, where she is committed to a multidisciplinary approach to patient care. She provides specialized dietetic services to inpatients at Vergelegen MediClinic, working closely with medical teams in the ICU, surgical, and medical wards to optimize patient recovery and well-being through tailored nutritional interventions. 

Beyond her professional work, Nadia is a devoted mother of two, which has further deepened her interest in maternal and infant nutrition. She is particularly passionate about breastfeeding and has firsthand experience navigating the challenges of pediatric nutrition, including managing picky eating. This personal perspective allows her to connect with and support parents facing similar challenges, reinforcing her holistic approach to nutrition and well-being.

Christy Smit

Christy is a passionate dietitian with a warm, empathetic approach, dedicated to empowering others to sustainably live healthier, longer, and more fulfilling lives.
With extensive experience, Christy supports individuals in managing lifestyle-related conditions such as diabetes and heart health, as well as emotional eating, weight management, sports nutrition and gut issues. She believes that health goes beyond just what’s on your plate — understanding the physical, emotional, and social dynamics at play is key to lasting well-being.
Outside of work, you'll find Christy staying active, enjoying the outdoors, or in the kitchen experimenting or expressing her love through cooking.
Her approach is rooted in genuine compassion, always tailoring her care to meet each person’s unique needs and lifestyle.
Christy’s philosophy is simple:
“Respect your body, joyfully nourish it, and live life fully & impactfully.”

Mignon van der Merwe

Mignon van der Merwe completed her degree in dietetics from the University of Cape Town in 2010 and she has dedicated most of her career to paediatric dietetics. 

Recognizing the crucial role of early nutrition in long-term health, she places a particular emphasis on supporting parents in feeding their children optimally within their unique home situation. As a mother herself, Mignon empathizes with the fears and uncertainties parents encounter and has a very realistic approach. She has a passion for working with premature infants, whom she regards as little heroes facing unique challenges. 

Mignon is guided by the words of C.S. Lewis: "Children are not a distraction from more important work. They are the most important work.”

Marieke Giliomee

Marieke is a registered dietitian who approaches patient care with empathy, warmth, and sincerity.

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She has a special interest in lactation and breastfeeding and is currently pursuing the South African Certified Lactation Consultant course.

Marieke enjoys working in both clinical (hospital) settings, and with patients managing chronic conditions such as diabetes, high cholesterol, insulin resistance, PCOS, and weight management. She also has a strong interest in oncology nutrition.

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Passionate about people, food, and healthy living, Marieke supports her patients in building sustainable habits through practical, evidence-based nutrition. She believes that true wellbeing comes from nourishing the body through balanced eating, movement, sleep, stress management, and support.