New to nutritional therapy? Find out how personalised nutrition could benefit you Read more
Retrain for a flexible and rewarding career in nutritional therapy. Discover our courses. Read more
Gains skills to grow your business whilst gaining additional credibility from a degree. Discover the top up course for nutritional therapists. Read more
Discover ION’s unique, fully online Graduate Diploma in Integrative Functional Nutrition. Designed for allied health and medical professionals and CAM practitioners. Read more
Professor Linus Pauling, PhD, Nobel laureate
The Institute for Optimum Nutrition (ION) is a higher education institution founded in 1984 by Patrick Holford with the support of twice Nobel Prize winner Professor Linus Pauling. It is one of the most respected training bodies of its kind in Europe.
Our flagship Nutritional Therapy courses educate students to become registered Nutritional Therapists on accredited professional qualification programmes. We champion our graduates and the wider nutrition and healthcare industry with our professional CPD courses. Our nutrition clinic and magazine Optimum Nutrition support the public to make a positive impact on their lives with food.
ION courses are designed with flexibility in mind and provide outstanding support. There are courses for everyone: from people with no previous experience, to qualified nutritional therapists, to doctors, allied healthcare professionals and CAM practitioners ready to add personalised nutrition to their practice. As one of the most respected training bodies of its kind in Europe, find out about studying at ION.
Discover exciting opportunities to deepen your knowledge and support your professional development through a range of short nutrition courses, short health courses, practitioner CPD events and Food Demo Days.
Register for an open event, join us online for a webinar (our in person open events are currently on hold) or book a one-to-one appointment phone call.
Optimum Nutrition is published four times a year and brings you the latest news, research, updates, forthcoming events, healthy recipes and much more... Sign up today for free digital access.
Our fully qualified Nutritional Therapists work with people every day to improve health and wellbeing, whatever your issue, they will help you find out how to improve your health naturally and safely.
This is a recording of a live course. It will help practitioners develop personalised nutrition plans for their clients living with and beyond cancer based on available evidence. Read more
This is a recording of a live course. It reviews the pathophysiology and underlying causes of autoimmune thyroid dysfunction and explains the body-wide impact of thyroid antibodies on non-thyroid tissue. It provides an approach for staging clients and intervening with diet and supplementation and explains the strength of the evidence in these areas. Read more
This is a recording of a live course. The course aims to enable practitioners to more confidently identify and and address symptoms related to HPA and HPG dysregulation. Read more
The festive season doesn’t have to be a case of ‘all or nothing’. Here are our top tips for eating well in the run-up to Christmas Read more
From office parties to meals out with friends, here's how to drink more sensibly during the festive season Read more
Graduate Joy Skipper tells us how nutritional therapy added a new dimension to her career Read more