Alex Royal Dietitians & Nutritionists: Registered Dietitians with a special interest in Nutrigenomics

The team at Alex Royal Dietetics is at the forefront of the rapidly developing world of Nutrition.

We are a group of three nutritional experts focusing on Dietetics and Nutrigenomics (linking your genes to health and nutrition). We specialise in weight loss, health, wellness and treating chronic disease such as cancer, IBS and diabetes.

Our office is located on the third floor at The Renaissance Body Science Institute, 183 Bree Street

We look forward to hearing from you and walking the path to health with you.

Alex Royal, Registered Dietitian

Alex is a Registered Dietitian known for her innovative work in business and novel approach in the field of nutrition. Her clinical and private practice work is anchored in nutrigenomics and DNA testing and encompasses a functional medicine approach.
Over the years she has authored the book “Genes to Plate” which focuses on linking ones genotype with food, dietary principles and recipes that best suit their health. The book is one of a kind and endorsed by several credible scientists in the field.
She has also co-founded two successful businesses that have had large, positive impacts on people’s health. The first being an individualised, tech-based meal delivery business named “Daily Dietitian” and the second being a group of online programs, named “Thrive Wellness” that embody the latest science in the fields of detoxification, longevity and overarching health.
Apart from nutrition, Alex is also qualified with an honours degree in Environmental Science and Biomedical Physiology.

BSc Biomedical Science (University of Kwa-Zulu Natal) 2005
BSc Hons Environmental Science (University of Kwa-Zulu Natal) 2006
Med Hons Nutrition and Dietetics (University of Cape Town) 2010
Manuka Nutrigenomics Course 2017

Registered with HPCSA and ADSA. Acts as an ADSA spokesman.

Alex loves…

I love food, health and nutrition, surfing, trail running, (all sport really), being outdoors, simple happiness and laughing! I want to inspire people to live a healthy happy lifestyle.

How can Alex help?

My aim is to help you lose weight and reach your health goals quickly and easily in a sustainable way.

I do on-line dietitian consultations or you can book to see me for a dietary analysis, anthropometric measurements (weight, height, BMI, body fat percentage), diet plans, recipes, follow-ups and Vitality Nutrition Assessments.

Shelly Bowien, Registered Dietitian

Shelly is a true foodie – she loves cooking, creating new recipes and experimenting in the kitchen.

What Shelly has to say:

“I have a great passion for nutrition and dietetics and I firmly believe that your body thanks you when you nourish it in the right way. “Right” means different things for different people, and individualisation is my primary goal. I have special interests in clinical nutrition, chronic diseases, IBS and gut health, weight loss, paediatrics and nutrigenomics.

I am forever looking for new research to be the best dietitian I can possibly be. My dream is to help patients reach their goals, no matter how big or small. I want to hold their hand on their journey with food – taking all aspects of health into consideration.”


  • BSc in Human Physiology with Psychology and Genetic (Stellenbosch University)
  • BMedSci Honours in Nutrition and Dietetics (University of Cape Town)
  • Registered with HPCSA and ADSA
  • Member of HPCSA and ADSA
  • Foundations in Nutrigenomic (CTG)
  • Food Allergy Course (Allergy Foundation South Africa)
  • Gut Health and the Microbiome (EatFit)
  • South African Certified Lactation Consultant (student)

Shelly loves…

Outside of dietetics, Shelly loves camping and being out in nature, or anything to do with the beach, yoga, and spending time with family, friends and her kitten.

How can Shelly help?

My main aim is to ensure that my clients are feeling happy and healthy! I want to empower my clients through providing accurate and practical nutrition advice as well as constant guidance.

Maryke Gallagher, Registered Dietitian Nutritionist

Maryke Gallagher is a registered dietitian nutritionist with 17 years of combined experience in private practice, research, lecturing, and consulting to the industry. She has a personalised, holistic, and evidence-based approach to nutrition therapy using functional nutrition principles.

She believes in preventative nutrition practices that address key cellular functions and systems to help the body function optimally, as well as manage chronic disease. Providing patients with practical guidance to nutrition and lifestyle changes is important to achieve lasting results.

Whole foods that are regeneratively produced, therefore good for the earth and the people that live on it, form the basis of a diet that helps the body function the way it should and is a key principle underlying her nutrition approach.

Maryke loves…

Maryke is a mom to 3 young children. She is a keen trail runner and mountain biker. BC (before children) her idea of fun was mountain bike stage races like the JoBergC and AbsaCapeEpic.

She is also a ‘super fermenter’ – brewing her own kombucha, making kefir, and baking sourdough bread.

How can Maryke help?

My areas of interest include: Nutritional genomics; Digestive Health and the role of gut microbiota in the management and development of disease; the management of digestive disorders (including functional bowel disorder, diverticulitis, diverticulosis, ulcerative colitis, Crohn’s Disease, Celiacs and lactose intolerance); Nutrition in the life cycle (pregnancy, breastfeeding, infant nutrition); Female health; Disease of Lifestyle (insulin resistance, PCOS, diabetes, cancer); Weight management; Wellness; Sports Nutrition.