The five principles of optimum nutrition

Exclusive five-part, three-hour home study taster course designed to introduce you to nutritional therapy education.
Discover Nutrition: Home study taster course
Unlock a foundation in personalised, science-informed nutrition with our exclusive five-part, three-hour home study taster course designed by founder Patrick Holford to ignite your journey toward a meaningful career in nutrition.
Whether you're exploring nutrition for the first time or weighing a professional pivot, this taster gives you a clear, hands-on experience of ION’s teaching philosophy. Over five engaging modules, you’ll explore essential principles drawn from our degree-level training grounded in the latest science, tailored to individual health journeys, and influenced by functional and evidence-based practice; empowering you with foundational knowledge and a glimpse of what lies ahead.
Learn at your own pace, from the comfort of home, and gain insight into how personalised nutritional therapy can transform both your understanding and your potential career in this growing field. Begin your nutrition training with confidence and let this taster course be your first step into a rewarding vocation with ION.
About Patrick:
Patrick Holford BSc, DipION, FBANT, NTCRP
- Patrick is a retired visiting professor, specialising in nutrition and mental health, author of 46 books and is in the Orthomolecular Medicine Hall of Fame
- ION Founder Patron - In 1984 Patrick founded the Institute for Optimum Nutrition
- Food for the Brain charity Founder and Chair of the Scientific Advisory Board