Our team of clinical qualified Nutritionists & Naturopaths at The JCN Clinic includes founder and director Jessica Cox, alongside Roshelle Colegrove, Tammy Shemesh and Christine Smith working under the JCN model, which has proven to be extremely successful over Jessica’s years of practice. As Nutritionists our focus is utilising the power of individualised and therapeutic nutrition alongside nutraceuticals where needed to have our clients achieve optimal results. Our nutritionists and naturopaths primary focus is to educate our clients therefore ensuring they hold the knowledge and tools long term to maintain health and vitality.
Our Clinical Nutritionists & Naturopaths specialise in:
- Gut health & digestive disorders, inclusive of SIBO (Small Intestinal Bacterial Overgrowth), IBS, IBD and chronic gastrointestinal inflammation
- Multiple food intolerances (inclusive of FODMAP, histamine, oxalates, salicylates, coeliacs and non-coeliac gluten sensitivity)
- Mental health (anxiety, depression, fatigue, poor concentration and low mood)
- Hormone health (PCOS, endometriosis, fibroids, menopause, acne)
- Immune/autoimmune irregularities (MCAS, mold, arthritis, chronic fatigue, hypothyroid/hyperthyroid)
- Children’s nutrition – fussy eating, introduction of solids, concentration and behaviour
Our JCN practitioners additionally have extensive knowledge in individualised dietary planning, nutritional supplementation and the utilisation of food as a medicinal tool. We provide outstanding dietary guidance and individualised food plans to deliver a unique approach in the nutrition space. We strive to educate and empower our clients in the foundations of health.
All of our Nutritionists and Naturopaths are degree qualified and certified. Here at The JCN Clinic we pride ourselves on the highest standard of care in our industry and are highly capable of assisting you with your health concerns. Be assured that no matter who you choose to see within our team that you will be in the very best of hands.
jessica cox
CEO, Clinical Nutritionist
Jessica Cox is the founder and business owner of the successful JCN Clinic based in Brisbane, Australia. Jessica is qualified practicing Clinical Nutritionist with a Bachelor Health Science (Nutrition). Jessica’s degree qualifications are recognised by Australian Natural Therapists Association Ltd (ANTA). Jessica is also the published author of e.a.t cookbook and recipe developer. Jess holds over fifteen years of clinical experience with a focus on chronic digestive health and systemic inflammation.
christine smith
Clinical Nutritionist
Christine Smith is an accredited and practicing Clinical Nutritionist at The JCN Clinic. Christine holds a Bachelor of Health Science in Nutritional and Dietetic Medicine and is a member of the Australian Natural Therapists Association Ltd (ANTA). Christine’s primary areas of focus include chronic digestive health, chronic fatigue syndrome, weight management and menstrual health.
Christine is currently fully booked and unable to accept new clients at this time. Please contact our reception team for further enquiries or alternative practitioner options.
roshelle colegrove
Clinical Nutritionist & Naturopath
Roshelle is a Clinical Nutritionist and Naturopath with a passion for supporting individuals with chronic digestive conditions. Roshelle holds a BHSc Nutritional Medicine and Dietetics and BHSc Naturopathy. Roshelle’s main interests are conditions associated with chronic digestive and mental health and their link to improving overall quality of life.
Tammy Shemesh
Clinical Nutritionist
Tammy Shemesh is a Clinical Nutritionist and Eating Psychology Coach specialising in chronic gut health and microbiome-driven conditions. She holds a Bachelor of Health Science in Nutritional Medicine and is a member of the Australian Natural Therapists Association (ANTA). Tammy works with complex, long-standing digestive issues, recognising the critical connection between gut health, hormone regulation, and reproductive function. Her areas of focus include chronic digestive disorders, hormonal imbalances, fertility support (Tammy is a Certified Fertility Nutritionist) and restoring foundational health through targeted, evidence-informed nutrition.
the jcn clinic reception
Get to know a little bit about our friendly receptionist at The JCN Clinic who is always available to help with any questions you may have, and of course guide you through your booking process.
Rheanon Morris
Reception Manager
With a strong background in both government and medical administration, Rheanon bring years of experience supporting teams, managing operations, and delivering professional, compassionate service in fast-paced environments. Her career has been built on strong organisational skills, attention to detail, and a genuine commitment to helping people.
Outside of work, Rhe is a proud wife and mum to two young men, and family is at the centre of everything she does. In her spare time, her favourite way to unwind and recharge is through Pilates, which she enjoys for both the physical and mental balance it brings to her life.
