Meet The Team

Olympian Wellness Clinic was founded by Tonia, a healthcare professional with 15 years of experience spanning laboratory science, medical sales, data analysis, and colon hydrotherapy. Her diverse career, combined with a deeply personal health journey, inspired her to create a clinic rooted in education, empowerment, and natural approaches to well-being.

Meet Tonia - Founder & Wellness Practitioner

Background

BSc Medical Laboratory Technology

Began her career at one of the leading diagnostics laboratories in Thessaloniki, Greece.

Product Specialist - Upper GI & Colorectal Surgery

Worked in medical sales, specialising in surgical products across the Greek market.

Sales & Export Manager - UK & Europe

Progressed through Sales Manager, Export Sales Manager for Europe, and Business Development & Account Manager roles in the UK.

MSc Stem Cells & Regeneration - University of Bristol

Completed her postgraduate degree while working as Export Sales Manager, driven by a passion for understanding the science of healing.

Information Analyst - NHS

Transitioned into healthcare data, bringing analytical rigour to patient and service improvement.

Qualified Colon Hydrotherapist, Phlebotomist and IV therapy practitioner

Trained and registered with RICTAT - the International Colonic Association of Colon Hydrotherapists and Trainers,

Currently studying at The Health Science Academy
Level 5 Professional Certification on Menopause Health & Gut Restoration.

In Tonia's words

Why this clinic exists

I established this clinic with a vision of empowering individuals to take charge of their well-being. My journey began with a personal experience of the MTHFR gene mutation - and the frustration of searching for clear information and effective answers. Through that process, I discovered the power of natural approaches to wellness, and this clinic is the culmination of that quest for knowledge.

As a mother of two, I know first-hand how easy it is to put yourself last. Parenthood has been my greatest teacher - and through its challenges, I found ways to nurture myself and maintain balance. I believe that when parents prioritise their own health, the whole family benefits. This clinic is here for you too.

Tonia

Founder, Olympian Wellness Clinic

Meet Dr. Sofia Erythropoulou

Background

MD — Carol Davila University, Bucharest

Completed her medical degree at one of Romania's most prestigious medical schools, laying the foundation for a career in specialist medicine.

Anaesthesiology specialisation & medical acupuncture — Thessaloniki, Greece

Pursued advanced training in anaesthesiology alongside certification in medical acupuncture, integrating conventional and complementary approaches from early in her career.

Pain & Acupuncture Clinic founder — Thessaloniki

Established her own pain and acupuncture clinic in Thessaloniki, developing expertise in both chronic and acute pain management while also teaching biology.

NHS Anaesthetist — United Kingdom

Brought her expertise to the NHS, working as an anaesthetist with a focus on chronic and acute pain management — and now channels that depth of clinical experience into functional and personalised medicine at Olympian Wellness Clinic.

Dr Sofia's journey into functional medicine is deeply personal. When she faced her own struggles with infertility, she began exploring what conventional medicine alone couldn't fully answer — the role of nutrition, vitamins, and the gut microbiome in women's health and fertility. That search led her to formal training in functional and lifestyle medicine, and ultimately to a completely new dimension of clinical practice.

Following the birth of her child, Dr Sofia faced a cancer diagnosis. Rather than stepping back, that experience deepened her commitment to preventive medicine and the relationship between mental and physical well-being. As a cancer survivor, she understands first-hand what it means to navigate the healthcare system while searching for answers — and she brings that understanding to every patient she sees.

Her mission is simple: to empower people with the knowledge and tools to take control of their health — before illness takes hold. She believes that the best medicine is personalised, preventive, and rooted in understanding the whole person.

Dr Sofia Erythropoulou

MD, Anaesthetist & Functional Medicine Practitioner

Dr Sofia Erythropoulou is an MD, specialist anaesthetist, and functional medicine practitioner whose path into integrative healthcare was shaped as much by her own health journey as by her medical training. A cancer survivor who navigated infertility before becoming a mother, she brings lived experience alongside exceptional clinical credentials — and a deep, personal understanding of why preventive and personalised medicine matters.

Visit Dr Sofia's website

Meet Renny Shak - Nutritional Therapist

Background

Bachelor of Pharmacy — India, 1990

Qualified as a pharmacist in India, where a lifelong interest in the relationship between food, nature, and healing was already taking root — inspired by her grandmother's use of home remedies from childhood.

Registered Pharmacist & Medical Representative — UAE

Registered as a pharmacist in the UAE and worked as a medical representative for Astra Middle East, gaining specialist training and practical experience in gastrointestinal and respiratory medicine.

Overseas Pharmacist Assessment Programme — Robert Gordon University, Aberdeen, 2006

Completed the UK overseas pharmacist assessment programme, paving the way for registration and practice in the British healthcare system.

Community Pharmacist — Bristol, Somerset & Isle of Wight, 2007–present

Has served communities across the South West and beyond for 18 years, building an intimate understanding of her patients' complex health needs — particularly those managing multiple medications.

Diploma in Nutritional Therapy — College of Naturopathic Medicine, London

Trained formally as a nutritional therapist, combining the science of naturopathic medicine with her decades of pharmaceutical knowledge to offer a uniquely integrated approach to patient care.

Renny is a qualified pharmacist with over 30 years of experience and a naturopathic nutritional therapist whose approach to health is rooted in something older than any prescription — the belief that food, nature, and self-awareness are among the most powerful medicines available to us. Trained across three continents, she brings a rare combination of pharmaceutical rigour and holistic wisdom to every client she works with.

Visit Renny's website

Renny's relationship with natural medicine began long before any formal qualification. Growing up in India, she watched her grandmother reach for the kitchen cupboard — turmeric, ginger, honey — long before reaching for a pharmacy. That early wisdom never left her, and she carried it through every stage of her career.

When menopause arrived, it arrived hard. The symptoms were, in her own words, horrific. But it was through that experience — guided by an Ayurvedic physician and a deepening exploration of food as medicine — that she found her way through. That journey became the foundation of her nutritional therapy practice, and her most powerful qualification of all.

Today, Renny's 30-year background in pharmacy gives her a critical edge: she understands how medications interact with nutrition in ways that most nutritional therapists simply cannot. For clients managing complex or multiple medications, this is invaluable. Her approach is always personalised, always rooted in the whole person — and always guided by a simple belief: what is of greater importance than health itself?

Sarah-Joy Lendon, Dental Nurse and Hygienist

Throughout her career, one thing has become increasingly clear: most dental disease is preventable, yet many people have never been taught the practical skills and knowledge needed to confidently care for their oral health. Sarah-Joy is passionate about bridging that gap.

Through The Virtual Hygienist, she provides personalised education, support and coaching to help people take control of their oral health and prevent problems before they arise. Her particular interest lies in supporting women in midlife who are experiencing bleeding gums, gum recession and other oral health changes linked to hormonal shifts. She helps clients understand what is happening in their mouths, why it matters, and the simple steps they can take to create lasting improvements.

Sarah-Joy believes that oral health is about far more than teeth. It is closely connected to overall health, confidence, wellbeing and quality of life. Her approach combines evidence-based oral health education with genuine compassion, empowering clients to make informed choices and feel confident in caring for themselves.

Known for her warm, approachable style, Sarah-Joy creates a safe and supportive space where clients feel heard, understood and encouraged. Whether working online or in person, her mission is simple: to help people move from confusion and frustration to clarity, confidence and healthier smiles.

Sarah-Joy Lendon is a Dental Hygienist, Dental Therapist, Oral Health Educator, Coach, founder of The Virtual Hygienist, and mum to three wonderful children. With more than 25 years of experience in dentistry, Sarah-Joy has worked across almost every corner of the profession, from prestigious private practices in Harley Street to NHS, community and prison dental services. This breadth of experience has given her a deep understanding of both the clinical and human sides of oral health.