Functional Health and Performance

07/03/2026

As a coach, when you start off with the goals and challenges in front of you there are numerous possibilities.

Many potential causes and solutions.

So context is key.

Working with the person. The individual.

That’s where the pieces of the puzzle often come together.

Delve into this whole case study here:

https://functionalhealthclinic.co.uk/case-study-nicki-going-from-extremes-to-mastery/

Jack

07/03/2026

We’ve 4 major stages to our process.

And we put a platform for the vastness of nutrition in early.

We address the issues of one-size-fits-all and dogmatic nutrition in the Foundation and the Grounding Stages.

Timing matters.

We also pick this topic apart and put it back together as we Reflect and Rewire.

If you’re curious, you’ll love the full 2hr presentation:

https://functionalhealthclinic.co.uk/de-dogma-your-nutrition-online-class/

Jack

06/03/2026

"I was researching stomach problems because I was having a lot of them. Specifically acid reflux and I started to suspect H. Pylori.

At that moment I had visited every Doctor in my city, Barcelona and they just told me that I had some “genetic” tendency to have acid reflux and related problems. To me this was really lacking sense because I had never previously experienced the symptoms before.

It all started when I was racing cycling at a professional level. I was focused on the competitive weight loss goal and started to care less about my nutrition, severely restricting calorie intake.

This was a very bad decision and I started to get all kinds of illnesses that I’d never had before. When feeling so weak, the straw that seemed to break the camel’s back was some seafood poisoning traveling to Latin America. After that I never really recovered and the symptoms just increased.

Thankfully, on Jack's coaching program I was taught about the importance of the food we put into our system, the nutrients, vitamins and minerals our body needs in order to repair. I also understood the ability to balance the nutrition alongside the exercise demands.

We made small changes every week. I started to cook my own food. My skills have improved and I enjoy cooking now. Jack was very supportive all the time and had a lot of patience with me, which I tremendously appreciate. Our relationship became like a coach-athlete, responding very fast to see the best change to keep achieving our goals.

Just a few weeks in I had more energy. A surprised because it was the first time in years. I recovered my natural sleep cycle which I’d lost. From that point my wellbeing soared as I alleviated the acid reflux and more. I think this is the future of the medicine!"

Marcelino Tusell (Barcelona, Spain)

If you have similar goals to our client Marcelino then take a look at our Membership program: https://functionalhealthclinic.co.uk/join-the-health-restoration-program/

Join The Health Restoration Program – MEMBERSHIP: Where we share all we know about functional health, vitality and health challenges

06/03/2026

We avoid this-for-that Nutrition (a shock I know ;-), so we know that what helps one person's thyroid function, will not necessarily help the next.

Take a look at this case study for some interesting 'Thyroid and Nutrition' insight: https://functionalhealthclinic.co.uk/case-study-nicki-going-from-extremes-to-mastery/

If you've been following this thread on this case study you might be wondering what did we do with all this ‘thyroid’ and metabolism evidence?

We actually kept it quite simple and focussed on Nutrition. This will usually be the most effective rather than overly focussing on the supplements or ‘miracle cures’.

Nicki’s steps to success:

- Care with brassicas and cruciferous (well-known anti-thyroid foods)
- Consuming more food (fuel)
- Moving away from meat alternatives
- Reducing Soy
- Increasing protein quality
- Some ‘Oxalate’ work (due to Organic Acids Test elevated marker)
- Clearing the dogma around carbohydrates and sugar (metabolic fuel)

The body is designed to perform. The cells are waiting for the ingredients. When supplied, the cells create enormous amounts of energy and the body runs smoothly(er).

What we really need to ‘Check and Balance’ are the reasons why we haven’t delivered what the cells actually need in the first place. That’s the individual and therefore, interesting part!

Indirectly we also considered all the other individual factors we knew about her body and how working on these areas could complement her metabolism too. Enabling the cellular engines to rev!:

Opportunistic Bacteria
Fungal Overgrowths
Nutrient Deficiencies
Digestive Capacity
Immune Support
Over Exercising
Sleep Quality

If you are struggling with energy, metabolism and thyroid health then drop us a message and enquire.

Jack

Check the whole case study too: https://functionalhealthclinic.co.uk/case-study-nicki-going-from-extremes-to-mastery/

05/03/2026

Check out

05/03/2026

Reflecting on my own journey from very much a one-size-fits all and pretty narrow approach to 'nutrition' to where it is today has been great.

Loved sharing this during the session with the attendees.

You can catch this recorded session here: https://functionalhealthclinic.co.uk/de-dogma-your-nutrition-online-class/

One thing is for sure and that is that much of this is a necessary process to go through. A useful one.

Parts of it felt like a welcome, interesting and fascinating challenge. Comfortable and almost indulgent given my natural interest in nutrition. Digging and actively looking for new perspectives on nutrition.

Yet - the unavoidable, harsher, more uncomfortable challenges were there too.

Ones that humble you and really teach you!

In my line of work, it's usually the process of working with real people with real scenarios that provide the most feedback.

Dogmas, theories and assumptions have no where to hide in this situation.

Join the discussion on the Health Restoration membership or watch this presentation: https://functionalhealthclinic.co.uk/de-dogma-your-nutrition-online-class/

Jack

28/02/2026

In this line of work it doesn't get much better than this........

“We were planning on having a baby, but then found out that I was dealing with an H pylori Infection and had various other health challenges that would ideally be optimized first.

So we embarked on a support program with Jack to do this and hopefully solve my chest pain, irregular bowel movements, low appetite, weight fluctuations, PMS and low body temperature.

Well, to cut a longer story short – On completing the program I felt the best I have ever felt. Not only did we improve and eliminate most symptoms, but a few months later I became pregnant and now have given birth to a healthy baby girl!. Thank you Jack”

Meghan (Texas, USA)

28/02/2026

In this client Case Study, we were busy looking at ways to get valid feedback from the body despite not having the comprehensive thyroid markers.

The next place we looked was the Hair Tissue Mineral Analysis test. A Test that I wouldn’t run in isolation, but one that is very insightful when alongside other tests such as a comprehensive blood test, organic acids test and gut health test.

In particular, we were interested in one of Nicki’s Mineral Ratios. The Calcium to Potassium or Ca/K ratio.

Did you know it’s often more meaningful to look at ‘ratios’ of minerals, rather than just absolute levels of individual minerals?

This helps us understand the functions that they relate to. In the case of Ca/K this is Thyroid function.

It can scratch the surface of your physiology’s performance. With or without the presence of symptomology!

For example – this Ca to K ratio provides insight into Thyroid function for several reasons:

- Adequate Thyroid hormone levels can regulate calcium to required levels.
- High Calcium levels can affect the permeability and correct function of cell walls/membranes.
- Potassium is required to sensitise cells to the thyroid hormone.

As you can see on Nicki’s HTMA test the Ca/K ratio is high. It’s 29:1 and optimal is around 4:1.

So this is a case of far too much Calcium compared to Potassium levels (in the hair).

The complexity of hair tissue mineral analysis is not what we’ll go into in this case study, but here we had more markers of not only how the thyroid could be a piece of the puzzle, but also what may be the driver of the thyroid dysfunction.

Looking at how the mineral Calcium was being displaced and shunted out of the body (lost) would be a pivotal consideration for this case.

Delve further here: https://functionalhealthclinic.co.uk/case-study-nicki-going-from-extremes-to-mastery/

Jack
Contact us if you want to run insightful functional lab tests - info@functionalhealthclinic.co.uk

27/02/2026

Our system of systems!
Nurture and Integrate it.
It's amazing what it can do.

27/02/2026

In part our client pre and post health challenges are down to the groundwork.

The foundational principles.

The none-marketable steps and discussions on identifying the dogma that dictated the lack of results so far.

And clearing it to pave the way to better processes and decisions!

None the less. These pre and post results make for an inspiring read.

The whole online class is ready to watch here: https://functionalhealthclinic.co.uk/de-dogma-your-nutrition-online-class/

Jack

26/02/2026

From what I know about Abbi this was massive for her at the time. But I also know that this was just the beginning for her.

"Jack Walton guided me to get my body at it's optimal state, which I can say feels fantastic.

I am a 22 year old Australian girl living away from home in London. After months of travel, I was suffering with many different symptoms that were effecting my everyday life. I was searching for answers for a long time before I was introduced to functional medicine. Shortly after, I took the required tests and I identified H pylori.

It seemed it was going to be a long road ahead. There was a lot of work to be done to get healthy again. However Jack helped me on a weekly basis and using his thorough knowledge of functional medicine, we started to get my body on track again.

As the weeks went by, through a lot of fine tuning with the right nutrition, sleep & protocols, my body got itself into a more optimal state.

Over time, I felt more & more healthier & happier within myself.

I can't thank Jack enough for the help & support the he gave me throughout the 4 months. Not only did he clear me from H pylori, but he also taught me so much about my body that I can hold onto forever and put in place whenever I need. I've learnt so much about food & nutrition. I couldn't be happier with the outcome we achieved.

Thanks Jack. I appreciate your time & the effort you put into this."

Abbi (London, UK)

If you are interested in the testimonials and case studies we share and wonder if we can make a difference for your health then take a look at this free course on the functional health approach: https://functionalhealthclinic.co.uk/functional-health-foundation-course/

26/02/2026

If you read this client's full case study, there's a lot to cover - but these optimised 'Biomeaures' are the key to it all.

https://functionalhealthclinic.co.uk/case-study-nicki-going-from-extremes-to-mastery/

I appreciate this Case Study is quite long, but if you read through you’ll be able to appreciate the range of steps and angles that Nicki covered in order to support her cellular engines and metabolic rate.

Was it one thing in particular or a culmination of focus on nutrition, psychology, gut, nnEMFs, balanced exercise and movement, sleep, hydration etc?

Within 3 months this is what Nicki achieved:

Resting Pulse ranged from 58 to 59 (pre 44 to 57)

Resting Underarm Temperature ranged from 36.8 to 37.0 (pre 35.1 to 36.4)

Massive Improvements! 😀

When you align these with how she was feeling pre and post, she now has much greater clarity on what her physiology can tell her about when she is at her best.

Jack