Credentials & Experience
My Areas of Expertise
How do I support you? Here are my areas of expertise:
Mindful Eating and Active Living Integration: I combine your nutrition goals with your daily hustle and training schedule, ensuring you gain a healthy eating behaviour that is at peace with food and sustainable without guilt.
Sports Nutrition: I create science-based strategies specific to performance and recovery, planned according to your training cycles.
Injury Period and Return-to-Sport Nutrition: I treat the injury process not as a loss, but as an opportunity for repair. I help you return to the field stronger than before with strategies that prevent muscle loss and accelerate tissue healing.
Science-Based Supplement Use: No guessing games. I provide guidance on safe, effective, and evidence-based supplement use to support your health and performance.
Nutrition for Female Athletes: Sensitive strategies that manage the effects of female physiology, hormone balance, and cyclical changes on performance.
Nutrition in Menopause: Nutrition plans tailored to changing hormonal structures, protecting bone health, preventing muscle loss, and ensuring you navigate this process comfortably.
Gut Health and Microbiota: By supporting gut health (IBS, bloating, etc.), I help increase your immunity, endurance, and overall quality of life.
Eating Disorders and RED-S in Athletes: I identify risks of Low Energy Availability (LEA) and RED-S syndrome in sports and develop curative solutions for them.
EDUCATION AND INTERNATIONAL COMPETENCE
PhD & Academic Degree: Undergraduate degree at Ankara University; Master’s and Doctorate at Hacettepe University (Graduated with honours and 2nd in Faculty).
CORU Registered Dietitian: A dietitian with international competence, registered with the Health and Social Care Professionals Council of Ireland.
Post-Doc Researcher: Two years of postdoctoral research on endurance athletes and metabolomic analyses supported by the Irish Research Council at Dublin City University.
CLINICAL AND ATHLETIC EXPERIENCE
Global Nutrition Consultancy (2015 – Present): Nutrition consultancy for a wide portfolio, primarily endurance and elite athletes, across Turkey, Ireland, and the Netherlands.
Clinical Expertise: 3 years managing Type 1 diabetes and endocrine diseases at Ankara Training and Research Hospital Endocrine Clinic.
INSTRUCTION AND SPEAKING
12 Years of Academic Career: Past experience as a lecturer and research assistant conducting courses on Sports Nutrition, Nutritional Biochemistry, Nutrition Education and Counselling and Scientific Literacy.
100+ Stage Experiences: Over 100 seminars and workshops for a wide audience ranging from athletes to health professionals at universities, clubs, and congresses.
Mentorship: Sports nutrition instructor in international programs supported by Cambridge University.
Skills and Specialist Training
- Internationally certified ISAK Level 3 Anthropometrist (Instructor).
- FODMAP trained dietitian – Monash University (Australia).
- Experience in metabolic testing, body composition assessment, gut-focused nutrition strategies, and interpretation of laboratory results.
Research and Publications
- Over 20 peer-reviewed publications in the fields of sports nutrition, gut health, metabolic rate, eating behaviour, and body image;
- Over 600 citations and an h-index of 9 on Scopus (my articles).
- Ongoing collaborations with research groups in Ireland, the UK, Belgium, and Switzerland on endurance performance, supplements, and microbiome-based projects.
- Editorial Board member for the journal Food and Agricultural Immunology.
We are driven by values
Our values define who we are and how we work. At Marketing Agency, we prioritize integrity, creativity, and collaboration in everything we do. We believe in building meaningful relationships with our clients, empowering them to achieve their goals, and always staying true to our commitment to delivering exceptional results.


Results Oriented Growth
We focus on delivering measurable outcomes, helping businesses achieve sustainable and scalable growth.

Client Collaboration
We work hand-in-hand with our clients, fostering transparent communication and meaningful partnerships.

Data-Driven Creativity
Combining creativity with insights, we design strategies that are both innovative and effective.
The team behind our success
Meet the passionate professionals who bring expertise, creativity, and innovation to every project. Our team is dedicated to helping you achieve your goals with tailored strategies and exceptional execution.

John Marshall
Strategy

Maria Williams
Marketing

Mark Spencer
Copywriting

Helen Castillo
Public Relations
Let’s work together!
Feeling inspired? Be part of a team that values innovation, collaboration, and growth. Together, we create impactful strategies that make a difference.