The most vital journey of your life

In today's health-conscious world, understanding the profound impact of food on our well-being is more crucial than ever. It's not merely about sustenance; it's about nourishment, healing, and prevention.

You are what you eat. From the strength of your bones to the sharpness of your mind, food shapes who you are. Food is the key to unlocking your body’s full potential. A well-nourished body is a resilient body, capable of fighting back and thriving.

For 40 years, the Institute for Optimum Nutrition (ION) has been at the forefront of personalised nutrition, shaping the careers of thousands of passionate professionals and teaching you how to choose foods that nourish and nurture, unlocking a world of potential within yourself and your future clients.

Embark on a rewarding career to transform lives.

Get your free ION course guide

Food is fundamental, it has always played a big part in my life… Cooking every day is therapeutic, I enjoy the whole process. As well as enjoying the taste, I know the food will nourish my body. I couldn’t live without delicious, healthy food on the table every day.
Lorna Rhodes, ION alumna

A summary of our courses

ION has a variety of courses to suit everyone's needs; from those new to nutrition, to healthcare practitioners. Read below to discover our catalogue of courses.

For those new to nutrition

BSc (Hons)
Nutritional Therapy

Access Course

Short Course in Diet and Health

Cert HE
Personalised Diet and Health

Start your career in nutritional therapy Preparing for degree level study Discover the impact of diet on health Become a diet and lifestyle educator
Develop a sophisticated understanding of the latest theoretical and applied knowledge of nutrition and lifestyle science Gain a solid grounding in the core sciences and an understanding of how they relate to nutrition Dip your toe into the world of nutrition – learn about the impact of diet on health and wellbeing Learn about real food and the importance of its 
constituents for health  
to support people to achieve their health goals
Learn more >  Learn more >  Learn more >  Learn more > 

For healthcare professionals

Graduate Diploma Integrative
Functional Nutrition

Credit-bearing Short courses 

Integrate personalised nutrition into your current practice Explore your passion, expand your practice and make a difference 
Investigate dietary, nutraceutical and lifestyle approaches to optimising health Choose from a range of titles such as Functional Nutrition, Behavioural Change in Nutrition and Lifestyle Practice, and more  
Learn more >  Learn more > 

For nutrition practitioners

BSc (Hons)
Nutritional Therapy Top-up

Return to Practice 

Continuing Professional Development Courses 

Enhance your professional standing Get your career back on track  Stay up to date with the latest developments in the world of nutrition 
Fast-track pathway to a degree in nutritional therapy using recognised prior learning. Explore, reflect on and critique the theory and practice of behaviour change, research methodology, and business practice For qualified nutritional therapists who have been out of practice for three years or more, we offer course options validated by the University of Portsmouth leading to registration/re-registration with CNHC (rCNHC) and full membership of BANT (mBANT) Our CPD options enhance your knowledge and skills, and provide you with what you need to remain relevant and effective in your career
Learn more >  Learn more >  Learn more >