The Institute for Optimum Nutrition is an independent, not for profit educational charity. Our Mission is to educate and enthuse, instilling Optimum Nutrition as the foundation of health for all. Our principal aim is to further the knowledge and practice of Optimum Nutrition.

Through all our activities we promote the principles of optimum nutrition as complementary to orthodox medicine, focusing on prevention of disorders through healthy eating and reducing reliance on remedial medicine.

Through our work we can increase awareness and provide evidenced based information to the public on the benefits of nutrition to health and wellbeing.

Established over thirty years ago, ION is one of the most respected training bodies and health information resources of its kind in the UK. ION is a member of the Nutritional Therapy Council's Training Providers Forum and London Excellence.


Instructor biography 

Katie Sheen, FdSc, DipION, PGCE, MA. Education and the Institute for Optimum Nutrition

Katie a highly qualified and experienced Nutritional Therapist and Educator, with a successful business helping people make positive nutritional change. She trained at The Institute for Optimum Nutrition (ION) over 10 years ago and has developed a suite of Udemy courses with them. These courses benefit from their huge wealth of nutrition education experience, credibility and strong reputation.  ION is one of the longest established providers of nutritional therapy education in UK and Europe, having trained thousands of students since its founding in 1984. At any one time, over 350 students are studying on ION’s contact and online diploma and their feeder courses. ION also engages in nutrition education for the public and qualified practitioners, with a quarterly magazine distributed to over 12,000 sites; a monthly newsletter to 27,000 recipients and 600 people annually attending its food education and practitioner training days. ION also has a thriving clinic, supporting clients with their specific health needs.

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