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Nutrition Sustain · Meet our team!
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Meet Marike Sabbagh Alvani

Senior Dietitian and Lifestyle Coach

Marike (pronounced Ma-re-ka) is Nutrition Sustain’s senior dietitian and lifestyle coach!

Marike is passionate about food, and loves nothing more than empowering people on their journey to health and wellness.

Marike has graduated from Curtin University (Perth WA) as an Accredited Practising Dietitian, and has worked in both private practice and hospital settings in Perth and Sydney over the past 9 years.

She has helped coach many people on their journey to health and has been interviewed and quoted by Prevention Magazine, the Healthy Food Guide, and the Sydney Observer.

Marike loves…

  • Dark chocolate and rooibos tea: Marike is a lover of mint dark chocolate and regularly enjoys it with a warm cup of rooibos tea.
  • Clean towels and sheets: Marike loves clean towels and sheets that have been dried crisp by the sun.
  • Dreaming: Marike is a dreamer and visionary – you’ll often find her day dreaming about big goals and plans.
  • Dancing: Marike isn’t the best of dancers but loves dancing with her husband Milad.
  • Travel: Marike loves travelling and learning more about different countries and cultures.
  • Photos: Capturing moments with her camera is a daily event in Marike’s life.



Bachelor of Science (Nutrition) (Curtin University, Perth)

Postgraduate Diploma in Dietetics (Curtin University, Perth)

Master of Public Health (Global Nutrition) (Victoria University, Melbourne) (in the process of completing)

ISAK Training Course – Level One Anthropometrist (Curtin University, Perth)

Certificate III & IV in Fitness (Australian Institute of Fitness, Perth)

Certificate in Sport Nutrition (Australian Institute of Sport, Canberra)

Certificate in Paediatric Nutrition and Dietetics (Royal Children’s Hospital, Melbourne)

Certificate in Nutrition Therapy for Fertility and Pregnancy (Nutrition Plus, Melbourne)


Professional Memberships

Dietitians Association of Australia (DAA)


Meet Tristan Schwartzkopff

Dietitian and Lifestyle Coach

Tristan has graduated from Edith Cowan University (Perth WA) as an Accredited Practicing Dietitian and has gained experience in both clinical and hospital settings across Perth. He currently works as a dietitian in the public health sector but also has a great passion working in private practice.

Growing up in the country, Tristan has always had a love for fresh, locally grown produce. He specialises in using these wholefood ingredients to empower his clients to prevent and manage chronic diseases like heart disease and diabetes. He is also an avid sportsman and has a keen interest in understanding how to eat and drink to optimise both general health and sporting performance.

During his time off you are likely to find Tristan out cycling around Perth or relaxing at home with his better half and pet rabbit.

Tristan loves…

  • Cooking: Particularly spicy food! Tristan loves to cook and experiment with a variety of spices and flavours.
  • Travel: Whether it’s the jungles of South America, the deserts of Africa or the fjords of Scandinavia, Tristan is always keen to explore the world.
  • Sport: A passion of Tristan’s since he was a kid, Tristan has played numerous seasons of cricket, Australian Rules Football and basketball. He has also competed in novice powerlifting competitions and is now a keen cyclist.
  • Reading: Tristan says it’s the best way to relax in the evening or to pass the time on the train to and from work.



Bachelor of Health Science (Nutrition) (Edith Cowan University, Perth)

Master of Nutrition and Dietetics (Edith Cowan University, Perth)

Certificate in Sport Nutrition (Sports Dietitians Australia, Melbourne)

Certificate in Medical Nutrition Therapy in Food Allergy and Intolerance (Australasian Society of Clinical Immunology and Allergy, and Dietitians Association of Australia, Canberra)


Professional Memberships

Dietitians Association of Australia (DAA)

Sports Dietitians Australia (Associate member)


Meet Jessica Grove

Wellness Advocate and Project Supporter 

Jess loves all things nutrition and supports Nutrition Sustain’s wellness projects.

Jess has a background in occupational therapy and personal training, and has personally experienced the pains and pitfalls of dieting through her past involvement in competitive bodybuilding. This has led Jess to become a strong advocate of sustainable nutrition and health.

In her spare time, Jess loves spending time at the beach with her family, and meditates as often as possible to stay grounded with her two young boys!

Jess loves…

  • Nature: Being outside in the fresh air and sunshine among the plants and butterflies is a daily love for Jess.
  • New recipes: Variety is the spice of life, right!? Jess loves finding and cooking new recipes for her husband and sons (bonus recipe points for healthy cakes and slices!).
  • Reading: Jess loves curling up and learning something new from a book every night before bed.
  • Growing her own food: Jess thinks there’s nothing tastier than enjoying an abundant harvest of fruits and vegetables grown in her own backyard (mangoes are her favourite!).
  • Embracing her inner child: Jess thinks life is more fun when you’re not so serious! She enjoys joining in with her children by playing on equipment at the park and chasing seagulls at the beach.



  • Bachelor of Science (Occupational Therapy) (Curtin University, Perth)
  • Certificate of Nutrition and Health Coaching (Cadence Health, Sydney)
  • Certificate III in Fitness (Australian Institute of Fitness, Perth) 


Professional Membership

International Institute of Complementary Therapies (IICT)