Find the right course
for you
Nutrition courses for you, your life and your career
Transform your passion for health into a rewarding, life-changing career with industry-leading nutritional therapy training. At the Institute for Optimum Nutrition (ION), we believe that personalised nutrition and lifestyle medicine are key to the future of healthcare. Whether you are taking your first steps toward qualifying as a registered nutritional therapist or embarking on a complete career change, our supportive, practitioner-led learning environment gives you the clinical insights, scientific grounding, and practical confidence to make a lasting impact on client health.
Our flexible nutritional therapy courses are built around rigorous, evidence-informed science and real-world clinical application. From accredited foundation modules and university-validated degree pathways—such as our BSc (Hons) Nutritional Therapy—to postgraduate study, Level 4–6 short courses, and specialist CPD, ION offers study options tailored to your schedule and goals. Explore our full range of personalised nutrition courses below to find your ideal pathway.
At a glance
- Accredited Nutritional Therapy Degrees: Graduate with industry-recognized qualifications via our BSc (Hons) Nutritional Therapy (validated by the University of Portsmouth) or begin your studies with our Cert HE in Personalised Diet and Health.
- Postgraduate & Advanced Practitioner Pathways: Take your career further with our Level 7 Postgraduate Diploma in Personalised Nutrition & Lifestyle Medicine, BSc Top-Up, or dedicated Return to Practice modules.
- Flexible Modular Short Courses (Levels 4–6): Build your qualifications step-by-step with 20-credit modules spanning foundational dietetics, health coaching, and advanced clinical nutrition topics.
- Continuing Professional Development (CPD): Enhance your clinical practice with live and on-demand CPD nutrition courses covering gut health, metabolic science, fasting, and functional medicine practices.
- Accessible Science Access Entry: No prior science background? Our dedicated Science Access course provides the biological and chemical foundation needed to enroll in our higher-level nutritional therapy training.
- Supervised Clinical Experience: Gain hands-on practice in ION’s training clinic, working directly with real clients under the guidance of expert, registered nutritional therapy practitioners.
Information
Find your pathway
The range of courses that we have on offer means that no matter where you are in your nutrition journey, there’s a course suitable for you!
Whether you are starting out on your nutrition journey, are already qualified as a nutritional therapy practitioner, or are a healthcare professional looking to expand your practice, we have the course for you.
Those new to nutrition often start out with one of our short courses before deciding if they want to enrol in our nutritional therapy degree programme or one of our longer training courses with a view to choosing nutrition as a career choice.
Not sure which course is right for you?
Schedule a call with one of our course advisors, download the latest prospectus, or use the interactive flowchart to plot your course.
Why choose ION?
ION has delivered science-informed courses in personalised nutrition since 1984, becoming the UK’s largest training provider in nutritional therapy.
Courses by The Institute for Optimum Nutrition aren’t like other nutrition courses though. Our online courses are validated by the University of Portsmouth, enabling our students to train to the level of expertise that is right for them and their career, with flexible study options.
How are ION’s courses delivered?
We offer all our nutrition courses online, for flexible distance learning. Our courses are offered both full time and part time and are designed to fit around your other commitments. We also offer optional in-person enhancement days.
