Dietitians - Nutritionists

Aggelopoulou Tzeni & Associates are Dietitian - Nutritionists specializing in Eating Disorders and maintain private offices in Alimos, Piraeus, and Galatsi. She is a graduate of the Department of Nutrition and Dietetics at the Alexander Technological Educational Institute of Thessaloniki and completed her internship at the General Hospital of Athens "Laiko". The Dietetic office provides high-level monitoring and management services for eating disorders and excess body weight. Specifically, it offers services for the development of personalized dietary plans for the treatment of obesity as well as pathological conditions such as high cholesterol, hypertension, diabetes mellitus, endocrine disorders (thyroid, polycystic ovary syndrome), gastrointestinal and renal diseases. Additionally, it provides nutritional support for individuals with special needs such as pregnant women, breastfeeding mothers, elderly individuals, athletes, and children. Finally, specialized assessments are offered, including body fat measurement, body composition analysis, and basal metabolic rate measurement.

Sioulis Aleksandros is a nutritionist with a private practice in the center of Thessaloniki. He is a graduate of the Clinical Dietetics Specialist department. Following his studies and seeking to deepen his knowledge in health and nutrition topics, as well as to stay informed about the latest developments in his field, he continued his education with a series of postgraduate programs and courses in nutrition. Some of these include: -National and Kapodistrian University of Athens: • Clinical Dietetics • Eating Disorders • Nutrition Coach -Harvard Medical School: • Healthy Eating For Diabetes • Healthy Eating For Cholesterol -Stanford Medical School: • Micronutrients and Diet • Essential Micronutrients -Tulane University: • Environmental Public Health (EPH) • Tribal Behavioral Health At his private office located in the center of Thessaloniki, Ermou 57 with Aristotelous, he has a clinical and non-clinical record of hundreds of successful cases. This success is attributed to his thorough specialization, psychological support, individualized case approach, and provision of fully personalized nutrition plans, advice, and recipes tailored to the specific needs of each client. Thus, he achieves the health and weight goals through a process that offers the client well-being, rapid results, and knowledge in the field of nutrition, enabling the client to maintain the achieved goal by having changed their dietary habits according to their personal needs and preferences.

Kolyviras - Tzivaniotis Stelios MMedSci is a Dietitian - Nutritionist and maintains a private practice in Glyfada. He is a graduate of the Department of Nutrition Science and Dietetics at the Hellenic Mediterranean University of Crete and holds postgraduate degrees from the Medical School of the National and Kapodistrian University of Athens in Pathology of Pregnancy and in Environmental Issues Management with Health Impacts. He completed his internship and worked as a Clinical Dietitian Nutritionist at IASO General Clinic. He has served as a Scientific collaborator in clinics and private medical offices, catering companies, and sports clubs as the responsible Dietitian Nutritionist. He participates in and attends seminars and conferences as part of continuous education and updating, considering it every professional's duty to stay continuously educated and informed on the latest developments in their field. Finally, he takes part in association lectures and writes articles for a range of scientific journals and websites.

Vlaxos Thomas is a Dietitian-Sports Nutritionist based in Pallini. He is a top graduate of the Dietetics department at Queen Margaret University, Edinburgh, Scotland, and holds a master's degree in "Applied Sports and Exercise Nutrition" from Oxford Brookes University, Oxford. He has obtained anthropometry certification from ISAK GLOBAL, certification as an anti-doping advisor from the UKAD organization in England, holds the title of Master Practitioner in Eating Disorders and Obesity under the auspices of the National Centre for Eating Disorders (NCfED) in the UK, and has been trained in Life and Executive Coaching. He has a record of publications, lectures, and presentations at scientific conferences and continuously updates his knowledge of advancements in the field of nutrition by participating in relevant seminars and conferences held both in Greece and abroad. He contributes articles to reputable Greek websites related to exercise and nutrition and delivers lectures in municipalities, schools, children's institutions focused on nutrition, and sports clubs aimed at maximizing athletic performance. On a daily basis, he helps both adults and children adopt a healthier lifestyle without deprivation through modification of dietary behavior, thereby contributing to the reduction of the risk of various diseases, as well as assisting athletes through optimal sports nutrition to enhance their athletic performance.

Nteli Spyridoula is a Dietitian - Nutritionist licensed to practice and operates a dietetics office in Lamia.

She graduated from the Department of Nutrition and Dietetics at the International Hellenic University (IHU) and has completed the postgraduate program titled "Food, Nutrition, and Microbiome" at the School of Medicine of Democritus University of Thrace.

She holds a Master Practitioner diploma in Eating Disorders and Obesity for the treatment and management of eating disorders and obesity from the National Centre for Eating Disorders of the United Kingdom and the Hellenic Centre for Eating Disorder Treatment. Additionally, she is certified as a specialist in sports nutrition.

She completed her internship at the General Hospital of Lamia, where, as a trainee Clinical Dietitian - Nutritionist, she was responsible for designing daily diets for patients in various hospital clinics.

She is a member of the Panhellenic Association of Dietitians - Nutritionists and regularly participates in seminars and scientific conferences, aiming for continuous professional development and staying informed about advancements in her field.

Katsamani Eleutheria MSc (MedSc) is a Clinical Dietitian - Nutritionist with a private practice in Pefki. She holds a Master of Science degree (MSc MedSc) in Clinical Dietetics from the University of Glasgow and a Bachelor Honors degree in Dietetics - Nutrition from Glasgow Caledonian University, United Kingdom. She is active through television and radio interviews, informative lectures, written articles in newspapers, online platforms, and school talks, aiming at continuous education on nutritional issues. She is a State Registered Dietitian in the United Kingdom and a member of the Panhellenic Association of Dietitians - Nutritionists.

Makri Anastasia is a Dietitian - Nutritionist and operates a private practice in Marousi. She studied in the Department of Nutrition and Dietetics at the Technological Educational Institute of Crete and holds a certification in Health Coaching from the National and Kapodistrian University of Athens. She completed her internship at Hygeia Hospital and in the Endocrinology Department of the "Red Cross" Hospital. Additionally, she has worked as Head Dietitian in major aesthetic centers, such as New Day and Silhouette, as well as in medical clinics. Finally, as part of her continuous professional development, she has attended and continues to attend numerous seminars concerning the nutrition of children and adults.

Tsiakla Xara is a Dietitian-Nutritionist practicing privately in Ampelokipoi, Attica. She graduated from the Department of "Nutrition Science and Dietetics" at Harokopio University. She holds a Master's degree in "Applied Dietetics" with a specialization in Clinical Nutrition and expertise in Eating Disorders and Obesity from KEADD, awarded by the same educational institution. Additionally, she has certified training in "Cognitive Behavioral Therapy" from the National and Kapodistrian University of Athens and "Training in Psychological Science" from the University of the Aegean. She has attended numerous nutrition conferences both in-person and online, covering a wide range of topics. Furthermore, she has collaborated with a medical aesthetics center and has managed numerous cases involving weight loss and nutritional education. Finally, for several years, she worked in the specialized nutrition products industry, gaining significant experience in clinical conditions such as cancer, inflammatory bowel diseases, and enteral nutrition.

Keydiet - Katerina Vamvouka and Associates are based in Chalandri. Katerina Vamvouka is a Clinical Dietitian - Nutritionist, graduate of Harokopio University and holder of a postgraduate degree in Public Health and Health Services Administration from the Medical School of the University of Crete. Since 2006, she has maintained a private dietetic office in Chalandri, while in the early years of her career, she served as the scientific head of the dietetic unit at the private hospital "Hygeia" and later at the rehabilitation and recovery center "Filoktitis," gaining extensive experience in predominantly clinical cases with specific nutritional needs. Subsequently, she decided to focus exclusively on managing obesity cases in both adults and children at her private practice, as well as providing counseling and proper guidance for balanced nutrition and exercise, thereby helping many people change their relationship with food and adopt healthier habits and lifestyles. In recent years, she established the Keydiet dietetic unit, where, together with a highly qualified team, she continues to provide dietetic services to an even broader range of cases. Together with her team and always prioritizing the individuality of people and their needs, she personalizes dietary and exercise instructions and strives, through proper guidance, to educate them to adopt a healthier dietary approach that they will maintain over a longer period.

Mat Nutrition - Matatsi Euaggelia is a Dietitian - Nutritionist who maintains her private practice in Edessa and also holds appointments in Athens, in the area of Dafni. She is a graduate of the Department of Nutrition and Dietetics at the Higher Technological Educational Institute of Larissa and completed her internship at the University General Hospital of Athens "Alexandra," where she gained experience with clinical cases as well as in the areas of breastfeeding and nutrition during pregnancy. Additionally, she successfully completed the Specialization Program in Eating Disorders and Obesity (Master Practitioner Programme in Eating Disorders & Obesity) at the Center for Education and Treatment of Eating Disorders (KEADD), under the auspices of the National Center for Eating Disorders of Great Britain (NCFED). She attended the training seminar: "Specialist in Sports Nutrition" by the scientific team of the Ergometric Center for Nutrition & Exercise "Peak Performance," as well as the Educational Seminar "FODMAP Diet Regimen" by the scientific team of epimorfosi.eu. Since then and up to the present, she has been actively involved in the field of nutrition, delivering educational presentations on nutritional education to groups of children and sports clubs primarily in the Edessa area. Since 2019, she has maintained her private practice "maΤ.Nutrition" in Edessa, and from 2025 she also holds appointments in Athens. Ms. Matatsi believes that balanced nutrition is a lifestyle change and not simply a “magic” solution that will make you thin or muscular. Every individual is unique, and only when they find what suits them will they be able to achieve their goal. Nutritional education is the key to a healthy mind and body.

Iliana Papadopoulou is a clinical dietitian-nutritionist with ten years of experience in clinical cases, which she acquired in major hospitals in the United Kingdom. Over the past four years, she has worked exclusively in one of the largest nephrology departments at Manchester Royal Infirmary in the United Kingdom, where she managed a broad range of patients with kidney diseases, supervised, and was the responsible dietitian in dialysis centers. She is recognized as a certified dietitian meeting the requirements set by the Health and Care Professions Council of the United Kingdom and is a member of both the British and Greek Dietetic Associations. Iliana maintains a private practice in Vrilissia. Her primary focus is the nutritional assessment of patients and the provision of nutritional education and guidance by offering personalized dietary programs based on their needs using evidence-based practice. She specializes in kidney diseases and also provides services for other clinical conditions such as gastroenterological and hepatic disorders, cancer, cardiovascular diseases, eating disorders, food intolerances, nutrition across life stages, and particularly in the elderly. Her office also offers body composition analysis and bioelectrical impedance measurement using the globally recognized and accurate Tanita analyzer. Additionally, she provides the capability for immediate communication with patients through a dedicated mobile application.

Konstantina Eksarxopoulou MSc is a Dietitian - Nutritionist with a private practice in Athens. She holds a degree in Nutrition and Dietetics from Harokopio University of Athens and completed the postgraduate program "Stress Management and Health Promotion" at the Medical School of the National and Kapodistrian University of Athens. She is a Scientific Associate at the "Agia Sofia" Children's Hospital and an external collaborator at the multidisciplinary physiotherapy rehabilitation and physical wellness center "Physiopolis". Additionally, she serves as the Lead Dietitian for the "Alliance for Health - Nutrition" program and as a Dietitian - Nutritionist at the Athens General Hospital "Laiko" and at the Nursing Foundation of the Army Share Fund (NIMTS). Finally, she is a member of the Scientific Society for Stress Management and Health Promotion.

Dr. Karagkouni Ioanna Maria is a Dietitian - Nutritionist with private practices in Marousi and Markopoulo, Attica. Having completed her studies in Biology at Ruhr University Bochum and her doctorate in Molecular Physiology at the Max Planck Institute in Dortmund, she combines profound scientific knowledge with a passion for health promotion. Her subsequent training as a nutritionist at BTB, as well as specialization in food intolerance and nutritional psychology at HSD University of Applied Sciences, have enhanced her multifaceted profile. She actively collaborates with leading scientific organizations, such as the German Nutrition Society, the German Society for Nutritional Medicine, and the Hellenic Nutrition Society, and is a member of organizations including QUETHEB. Through continuous education and practical experience, she offers personalized nutritional solutions that improve health, metabolism, and the overall well-being of those who trust her.

Kouvatsos Filippos  is a Dietitian-Nutritionist who runs a private dietetics office in Koropi and Dafni. Additionally, he is a scientific associate at the MTS Alternative Therapy Center in Lamia and the Nutrition Center of the Municipality of Paleou Faliro. She also provides remote consultations across Greece (Syros, Thiva, Crete, Volos, Lamia) and internationally (Cyprus, USA, Dubai, Germany).

He studied Dietetics and Nutrition Science at Harokopio University and has been trained in Western and Chinese herbal medicine, Hippocratic nutrition, and acupuncture at the Academy of Ancient Greek and Chinese Medicine. Furthermore, he has given presentations at educational seminars and has worked as a scientific associate for FAGE and Thermes Spa.

Panou Argyro is a Dietitian - Nutritionist and operates a private practice in Ano Toumba, Thessaloniki. She is a graduate of the Dietetics - Nutrition department of the Thessaloniki Higher Technological Educational Institute and is a member of the Hellenic Association of Dietitians - Nutritionists. In her private practice, she offers a wide range of services, tailored to the individual needs of each client. Additionally, Ms. Panou is a collaborator with DNA Therapeutics. Nutrigenetics studies how an individual's genes influence their response to foods. By investigating a person's genetic profile, valuable information is obtained, such as their response to proteins, carbohydrates, and fats, their sensitivity to salt, alcohol, and caffeine, or their ability to absorb vitamins. Through the analysis of this information, personalized diets are designed with the goal of weight loss, prevention of specific nutrition-related diseases, or improvement of physical performance.

Xantzaridis Petros is a Military Dietitian - Nutritionist, founder and Director of the Clinical Diet dietetic office in Agia Paraskevi. He was admitted to the Veterinary Medicine Department of the Military School of Officers Corps (SSAS) in Thessaloniki and was commissioned as an Officer of the Hellenic Army in 1996, having been honored with scholarships and commendations from the State Scholarships Foundation (I.K.Y.). In 2000, he was admitted to the Department of Nutrition & Dietetics of the School of Food Technology & Nutrition at ATEI Thessaloniki and graduated in 2003, again receiving scholarships from I.K.Y. In 2009, he was selected by the Health Directorate of the General Staff of the Army as a recipient of an honorary educational scholarship in the field of Dietetics. The prestigious New York University in the United States selected him among numerous candidates from around the world and accepted him into the Graduate Program of Clinical Nutrition, from which he graduated in 2010 with a Master of Science in Clinical Nutrition, receiving favorable reviews from leading international Nutrition professors. Since 2005, he has served for several years as Director of the Dietetic Department of the 401 General Military Hospital of Athens. His daily management of clinical cases at the 401 General Military Hospital of Athens, his extensive experience, and the breadth of his studies allow him to have a comprehensive understanding of the food chain, nutritional risks, and their proper management both preventively and in clinical settings. Finally, upon requests from Harokopio University of Athens and the Department of Nutrition & Dietetics of the Technological Educational Institute of Crete, he has undertaken the training of many final-year students as part of their practical training.

Isaakidis Akritas - NutriOn is a Dietitian - Nutritionist with a private practice in Neapoli, Thessaloniki. He holds a degree from the International Hellenic University in Thessaloniki, specializing in Sports Nutritional Guidance from the National and Kapodistrian University of Athens. Through concurrent practical training abroad and in hospitals, as well as attending seminars and conferences, he has gained extensive experience and education as a nutrition professional. We focus on a Healthy Lifestyle, and therefore, we invite you to become a member of the "NutriOn" family! Let us start with the goal of changing dietary habits, taking into account your individual needs and analyzing your body composition (fat, muscle mass)! We will develop a personalized nutrition program tailored to your specific needs, fully covering you and providing all the nutrients necessary for your body to function properly! Whatever your nutritional goal is, we have the solution and tools to achieve it!