The practitioners shaping the future of functional health

Every practitioner’s journey is different — but the results speak for themselves. From confidence in complex cases to clarity in clinical direction, see how IOH has shaped thousands of careers.
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and more...
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Hear from our students.
Their stories are why we exist.

Dr Wells
Dr Wells
Medical Doctor
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Dominic Wenner
Dominic Wenner
Men’s Health Coach
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Victoria Sissanes
Victoria Sissanes
Sonographer
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Simon Dutton
Simon Dutton
Personal Trainer
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Dr Stephanie
Dr Stephanie
Medical Doctor
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Dr Ailina
Dr Ailina
Medical Doctor
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Tom Harries
Tom Harries
Movement Specialist
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Mandy Hopper
Mandy Hopper
Gym Owner
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Terezia Borcsok
Terezia Borcsok
Dietician
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Thierry Cry-Lafleur
Thierry Cry-Lafleur
Pharmacologist
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Liza Glanville
Liza Glanville
Health Coach
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Martin Fenn
Martin Fenn
Functional Neurologist
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Mark Dini
Mark Dini
Biohacker & Keynote Speaker
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Helle Tonts
Helle Tonts
Nutrition Coach
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Anna Mangan
Anna Mangan
Health Coach
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Dr Beatty
Dr Beatty
Medical Doctor
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Jordan Briggs
Jordan Briggs
Gut Health Coach
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Chris McClarence
Chris McClarence
Close Protection Specialist
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Dr Sumner
Dr Sumner
Functional Medicine Physician
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Afshan Hussain
Afshan Hussain
Fertility Specialist
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Josh McLaughlan
Josh McLaughlan
Calisthenics Gym Owner
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Izzy Beeston
Izzy Beeston
Women’s Body Comp Coach
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Life-changing moments
that matter

"One of my star clients had been seeing mould CIRS specialists for five years with no results and a lot of generic protocols. She is now thriving and has had significant changes in the past few months which has been the changing as she couldn’t do anything."
J
Amy Southorn
Amy Southorn
Health & Nutrition Coach
"This has been one of the best months yet, in personal and business Having built my carbs to 300g/day with no more crippling pain from my ankylosing spondylitis and feeling confident with zero need to ever use Biologic injections again (with others) with my condition live on their whole life. Having watched my friend and fellow Carter student begin to flourish as she comes off her SSRI’s after 12 years of reliance And thirdly, having hit £80k in contract value from sales just in July, alongside the addition of a third personal trainer with AB. Feel like I’ve known the Carter Inst. for years! What a blessing to be on the journey from the beginning just six short months ago!"
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Izzy Beeston
Izzy Beeston
Women’s Body Composition Coach
"End January on £40k but I’m not even bothered about that, my community is so lit up and the results are absolutely insane, for those that have been watching my insta stories you’ll know exactly what I mean. 500 new followers on ig in a month, for me that’s a lot. Like always my DMs are lit. Currently got my mother in law in India so I’m getting her to organise feeding a village for a weekend. I’ve just paid my big fat tax bill and felt good for it (I used to bitch about this 😅). I’ve just hired Martin Fenn as my coach. Delivered the emotions seminar to my clients with a twist, this seminar always get people crying/powerful. Helped a few coaches with their communication and sales and it’s fair to say they have doubled their close rate."
J
Gauran Patel
Gauran Patel
Women’s Health Coach
"My beautiful client just gave birth to her third little girl at 45! She had two miscarriages previously when trying for her third (both after the age of 40) — after the second miscarriage was when she reached out to work with me. She was experiencing extreme burn out so nurturing her nervous system was a big part of her plan."
J
Jadine Hanys
Jadine Hanys
Clinical Nutritionist
"I had one client who had been told multiple times she wouldn’t be able to get pregnant due to PCOS get pregnant in 12 weeks (and then supported her to birth a very healthy baby) I’ve helped 4 women with Endometriosis come completely off pain medication and one of them was also able to fall pregnant at 35. Helped one woman get pregnant after two miscarriages which devastated her mentally. Helped two women get their period back (three if you count but she did most of that herself) Two women with PCOS get their cycle down from 50+ days to between 30–33 days, as well as two more actually reverse all symptoms of PCOS (normal androgens, no acne or facial hair and regular cycle) Helped three women through menopause and remember them telling me the difference was like night and day. And then I think about five that I have supported to come off the birth control pill when they have tried previously but went back on it due to symptoms like acne."
J
Charley O’Halloran
Charley O’Halloran
Gut Health Coach
"Helped my client safely transition off the pill after 3 failed attempts. We’ve had 3 regular cycles and last week she emailed me to tell me she had fallen pregnant! Came to me for help with minimising post-pill acne, left the programme with clear skin, a regular cycle and a baby!"
J
Faye Knox
Faye Knox
Skin Practitioner
"First client, PCOS, multiple miscarriages, and hasn’t been able to sustain pregnancy since her first son who is 10 years old! Second client, coming off contraception prior hadn’t had a cycle for months and now pregnant within 12 weeks! Third client, previous history of miscarriage and now pregnant with her first! One of the best parts of my job!"
J
Natasha Godfrey
Natasha Godfrey
Naturopath
"£56k Q1 Banked £27k in March which is a record month for me. Added 24 clients in March. Building team: will have a success coach in the next 2 weeks plus a second appointment setter and potentially a client success coach too. Mastering the sales process. Converting 70%+ of calls. Launched a podcast and it’s going very well even though it’s early days. Started a fitness production business. Brought on an ambassador for the program too."
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Dominic Wenner
Dominic Wenner
Men’s Health Coach
"I just put up one of the Hit Lines on my story 6 hours back.. and have got 500+ leads already!! Conversing and nurturing these leads is gonna be the next task. Any tips to make this easier, team?"
J
Miten Kakaiya
Miten Kakaiya
Weightloss Coach
What does an Integrative Nutritional Therapist do?
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An Integrative Nutritional Therapist utilises the latest evidence-based research to create an integrative approach to optimising each client’s health and wellbeing.

They design bio-individual nutrition plans, personalise supplementation where appropriate, and interpret functional laboratory data, including blood work, to gain deeper insights, achieve better accuracy and tailor every intervention to the individual.

How is functional medicine different from conventional medicine?
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Conventional medicine often waits until a disease is clearly present before intervention begins. Treatment is focused on managing or suppressing a diagnosed condition.

Functional medicine looks upstream. It assesses the early drivers of dysfunction and works to prevent disease from developing in the first place, or restore balance in the body. It uses a whole-systems view of the body, then applies personalised, preventative nutrition and lifestyle interventions to support long-term health rather than only reacting once things have gone wrong.

What will be my scope of practice after completing this certification?
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After completing the certification, you will be recognised and insured as a Integrative Nutritional Therapist inclusive of Nutritional Therapy and Functional Blood Work, with a clearly defined scope of practice.

You will be trained and insured to:

  • Design bio-individual nutrition plans
  • Recommend and prescribe over-the-counter supplementation up to safe, optimal intake thresholds
  • Utilise functional blood work from a wellness perspective to guide your reasoning and recommendations
  • Collaborate with and refer to medical professionals when red flags, pathology or out-of-scope conditions are identified

Our scope of practice has been aligned with nutritional therapy standards and externally audited, so you can work with confidence and clarity.

Is your course accredited?
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Yes. Our certifications are accredited by multiple independent professional bodies, including the International Institute for Complementary Therapists (IICT) and the Complementary Medical Association (CMA).

To receive these accreditations, our curriculum undergoes forensic external auditing to ensure every component is up to date, evidence-informed, ethically delivered and aligned with recognised Nutritional Therapy and Functional Health standards. This includes rigorous evaluation of our academic content, assessments, delivery methods and scope of practice frameworks.

This external oversight gives you confidence that the qualification you are investing in is credible, robust and widely recognised within the industry, with clear pathways for insurance, professional membership and global practice.

Will I be able to practise internationally?
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Yes. Our graduates are eligible for insurance through IICT that is recognised across 36 countries, including:

Australia, Austria, Belgium, Bulgaria, Canada, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, South Africa, Spain, Sweden & United Kingdom.

This allows you to work with clients internationally, including in online practice, provided you respect local regulations and the scope of practice defined by your insurer and professional associations.

Need help?
Get in touch with us
Clarity, confidence, and real results start with one conversation. Let’s map your next chapter — together.