Courses and services

Discover our courses

ION has been delivering sector leading courses in nutrition since 1984. Found out about our courses and what makes studying with ION special.



CPD courses

Discover exciting opportunities to deepen your knowledge and support your professional development through a range of live and on-demand CPD events.



Register for an ION open event

Register for in-person and online open events, or book a one-to-one appointment and we'll call you.



Optimum Nutrition magazine

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.



Optimum Nutrition Clinic

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.



Online webinars

  • CPD on-demand | Long Covid: A framework for improving energy and resolving inflammation

    This is a recording of a live course. This course with Dr Sarah Myhill explains the clinical picture of long Covid including the biochemistry and physiology by which the body generates energy. It provides a clinical framework for reducing fatigue and addressing inflammation- like symptoms. Read more

  • CPD on-demand | Nutrition for Children’s Health

    This is a recording of a live course. It explain the key dietary and nutrient needs for feeding a child’s brain, immune system and gut and the science behind this for each stage of development from conception onwards. Read more

  • CPD on-demand | 3 day course - Cancer: Nutritional support before, during and after treatment and beyond

    This is a recording of a live course. ION’s updated three day course aims to help practitioners gain confidence across a range of cancers by setting a foundation for further understanding and exploration. Read more

Latest articles

  • Skin: how to glow from the inside out

    Skin-care can be a tricky business, but instead of just slathering on moisturiser and hoping for the best, why not take care of your largest organ from the inside out? Here are our top tips for glowing skin. Read more

  • The surprising properties of berries

    If you want to eat local, seasonal food in the summer months then British berries are a great choice. Read more

  • The truth about crash diets

    Extreme dieting can be counterproductive and even dangerous. We spoke to bariatric surgeon and author of Why We Eat (Too Much), Dr Andrew Jenkinson, and registered nutritional therapy practitioner, Julia Young, about the consequences of rapid weight loss. Read more