
Clemmie Oliver
Fellow at ION / Registered Nutritional Therpist, Registered Associate Nutritionist
OUR FINAL IN-PERSON OPEN DAY OF THE YEAR IS HAPPENING 3 OCTOBER. DON’T MISS YOUR CHANCE TO LEARN ABOUT YOUR NEW CAREER! • FROM THE VAULT: EXPLORE COMPLETE BACK ISSUES OF OPTIMUM NUTRITION MAGAZINE FOR FREE • BOOK YOUR TICKET FOR THE HEATHER ROSA TRIBUTE AND MITOCHONDRIA EVENT ON 30 OCTOBER • THE ‘BSC (HONS) NUTRITIONAL THERAPY’ AND ‘CERT HE PERSONALISED DIET AND HEALTH’ APPLICATION FOR THE FEBRUARY 2027 COHORT IS NOW OPEN. APPLY BY 10 NOVEMBER TO TAKE ADVANTAGE OF OUR EARLY-BIRD DISCOUNT • OUR NEW, LEVEL 7, POSTGRADUATE COURSE FOR MEDICAL PROFESSIONALS, ALLIED HEALTHCARE PRACTITIONERS AND CAM PRACTITIONERS IS NOW OPEN FOR APPLICATIONS•
OUR FINAL IN-PERSON OPEN DAY OF THE YEAR IS HAPPENING 3 OCTOBER. DON’T MISS YOUR CHANCE TO LEARN ABOUT YOUR NEW CAREER! • FROM THE VAULT: EXPLORE COMPLETE BACK ISSUES OF OPTIMUM NUTRITION MAGAZINE FOR FREE • BOOK YOUR TICKET FOR THE HEATHER ROSA TRIBUTE AND MITOCHONDRIA EVENT ON 30 OCTOBER • THE ‘BSC (HONS) NUTRITIONAL THERAPY’ AND ‘CERT HE PERSONALISED DIET AND HEALTH’ APPLICATION FOR THE FEBRUARY 2027 COHORT IS NOW OPEN. APPLY BY 10 NOVEMBER TO TAKE ADVANTAGE OF OUR EARLY-BIRD DISCOUNT • OUR NEW, LEVEL 7, POSTGRADUATE COURSE FOR MEDICAL PROFESSIONALS, ALLIED HEALTHCARE PRACTITIONERS AND CAM PRACTITIONERS IS NOW OPEN FOR APPLICATIONS•
We’re a passionate group of educators, clinicians and support staff who care deeply about nutrition, learning and the people we work with. Behind every course, lecture and student interaction is a team committed to thoughtful, evidence-based education and genuine support. Together, we work to create a learning experience that feels rigorous, relevant and human — helping our students grow in confidence as they move from learning into professional practice.


“Working at ION has been genuinely rewarding. The collaborative culture, shared purpose, and commitment to supporting students and staff make it a place where people are encouraged to do their best work.”
Charlton Berthoud
BSc (Hons), ACA
Head of Finance in Corporate Services

Clemmie Oliver
Fellow at ION / Registered Nutritional Therpist, Registered Associate Nutritionist

Graham John Mills
Fellow at ION

Janet Anders
Fellow at ION

Jenny Tschiesche
Fellow at ION / Nutritional therapist, author, and founder of lunchboxdoctor.com

Jo Bridger
Fellow at ION / Registered Nutritional Therapist

Karen Watkins
Fellow at ION / Technical Advisor and Director at Mineral Check Ltd

Sam Feltham
Fellow at ION / Director of Public Health Collaboration