Meet our Registered Dietititans

René Janse van Rensburg

The Founder
B. Dietetics (UP), PG DIP Diab (Uni South Wales)

As the owner and founder of Midwell Dietitians, Rene qualified at the University of Pretoria with a Bachelor of Science degree in Dietetics. She has more than 12 years’ experience in private practice, seeing both in hospital and out patients.

Her compassion especially with small children diagnosed with diabetes, led her to complete her Post Graduate Diploma in Diabetes Mellitus, through the University of South Wales. She became a diabetic educator for various insulin manufacturing companies.
Her commitment to science-based care is evident as she is a member of the Health Professions Council of South Africa (HPCSA) and Diabetes Educator Society of South Africa (DESSA) and served on the ADSA (Association for Dietetics in South Africa) Highveld committee.

Her love for sports has led her to become a CrossFit affiliate owner. She is a certified yoga and spinning instructor and after her first Iron Man 70.3, she became Sport Nutrition certified and since, enjoys working with athletes all over the world.

As a mother of 3 wonderful boys, this sparked her interest in becoming a certified hypnobirthing and perinatal educator. Her online and in-person classes aim to empower expecting women to make informed choices. She has a holistic approach to life in order to create balance and live life to the fullest.

Salomei Wilson

BSc Dietetics at Stellenbosch University

Salomei Wilson is a Registered Dietitian with eight years of experience in private practice. She completed her BSc Dietetics at Stellenbosch University and has continued to expand her clinical knowledge through further professional development, including training in integrative medicine and oncology nutrition. Her approach combines evidence-based nutrition science with a broader understanding of the individual, their health, lifestyle and nutritional needs.

For the past five years, Salomei has worked extensively with children and families, including children on the autism spectrum with severe picky eating, selective eating and complex nutritional needs. She understands that feeding challenges affect the whole family and focuses on practical, supportive strategies that are realistic to implement at home.

Salomei has a special interest in oncology and cancer nutrition, supporting patients before, during and after cancer treatment. Her focus includes helping patients maintain adequate nutrition, manage treatment-related eating challenges, support gut and digestive health, preserve strength and nutritional status, and maintain quality of life throughout treatment and recovery.

She also enjoys working with patients on weight management and lifestyle-related conditions, moving away from quick fixes towards realistic, sustainable nutrition changes that can be maintained in everyday life.
Salomei’s approach is compassionate, practical and evidence-based. She believes good nutrition advice should not only be scientifically sound—it should be understandable, achievable and appropriate for the person and family receiving it

Clinical Focus Areas:

• Oncology & Cancer Nutrition

•  Paediatric Nutrition

• Autism, Picky & Selective Eating

• Weight Management

• Gut & Digestive Health

• Lifestyle-Related Conditions

Leandi Calitz

B. Dietetics (NWU)

Leandi Calitz is a seasoned dietitian with a Bachelor’s Degree in Dietetics from North West University (Potchefstroom) and over 15 years of experience in critical care nutrition. Her expertise lies in applying advanced nutritional support (enteral or parenteral) to critically ill patients and ensuring they receive the best care possible.

She is passionate about using her knowledge to help patients achieve optimal health through personalized nutrition for specific health conditions, or to enhance their overall well-being, or simply seeking guidance on healthier eating habits.

Outside of her professional life, she is a devoted mother to two wonderful children, whom she treasures spending time with.  Engaging in outdoor adventures, exploring new hobbies, or simply enjoying cozy family moments at home is what she loves.