Brainstorm Health Clinic

Brainstorm Health Clinic Stella has a special interest in digestive disorders, autoimmune conditions, food intolerances and the relationship between genetics and nutrition.

Brainstorm Health is an award-winning Functional Medicine and Nutritional Therapy clinic, providing cutting-edge health solutions for children and young adults on the autism spectrum, as well as those with PANDAS, PANS, depression, anxiety, and long COVID Brainstorm Health was founded by Stella Chadwick, with a commitment to achieving optimum health for children and young adults on the autism spectrum, as well as those with behavioural and learning difficulties, and food and chemical sensitivities. Stella has a first class BSc Honours degree in Nutritional Therapy, with extensive training in the principles of Functional Medicine, which assesses and addresses the underlying causes of conditions.

06/03/2026

Most children’s probiotics are raising their histamine.

L. casei and L. bulgaricus are confirmed histamine producers. They are in many of the most popular children’s brands. Nobody tells you this.

The strains that actually help are mostly Bifidobacterium. Different genus. Different effect.

If your child flares on probiotics, check the strains. That might be your answer.

05/03/2026

DAO is the enzyme that clears histamine in the gut. It requires copper as a cofactor.

Everyone is supplementing zinc. Almost nobody is checking copper.

High zinc without adequate copper = suppressed DAO = histamine builds no matter how clean the diet is.

04/03/2026

Quercetin is one of the most popular mast cell stabilisers.

But in children with slow COMT or MAO gene variants, it can make everything worse.

Quercetin inhibits COMT. If COMT is already slow, you are slowing it further.

Adrenaline, noradrenaline, and dopamine cannot clear. The child gets more wired, not less.

This is one of the most common supplement mistakes we see.

The alternative: luteolin. It stabilises mast cells through a different mechanism, inhibiting IL-1B and TNF release triggered by substance P and IL-33. Often better tolerated

If your child has been prescribed quercetin and seems more wired, not less - ask your practitioner to check COMT and MAO variants before continuing. Luteolin may be a better fit.

Most children we see are not allergic. No hives. No anaphylaxis. But their bodies are behaving as if they are under atta...
03/03/2026

Most children we see are not allergic.
No hives. No anaphylaxis.
But their bodies are behaving as if they are under attack.

Mast cells.

These are immune cells that sit in the gut, the brain, the skin, the airways.
When they are stable, they do their job quietly.
When they are activated, they release histamine, prostaglandins, cytokines.

A chemical storm.

In clinic, we see the same picture again and again:

Red ears after eating.
Dark circles under the eyes.
Flushing for no obvious reason.
Behaviour escalating after certain foods, environments, or illness.
Sleep falling apart in pollen season.

The allergy test comes back normal.
Every time.

Because this is not allergy.
This is mast cell activation.

Different mechanism. Different tests. Different approach.

When we calm the mast cells, settle the histamine load, and reduce the triggers driving the activation, parents describe the same shift:

Calmer. Clearer. More present.

It is not about removing every food. It is about finding what is driving the immune system into overdrive.

Link to blog in comments.

I absolutely love this guy. He is spot on.
03/03/2026

I absolutely love this guy. He is spot on.

Six months ago, Benjamin couldn't stay home alone for 10 minutes. Bedtime took over an hour. Tics flared most days. His ...
12/02/2026

Six months ago, Benjamin couldn't stay home alone for 10 minutes.

Bedtime took over an hour.
Tics flared most days.
His stomach pain spiked every time his anxiety rose.
Mainstream school wasn't working.

His family had already tried therapy. They had trialled medication. They had seen specialists.

Some pieces helped. The overall pattern didn’t shift.

That was when they came to us.

This week he was standing behind a small honest shed he built himself chatting to neighbours and cycling round his village on his own.

I've written up the full case in this weeks newsletter.

If this sounds familiar, you may want to read it. You can sign up Free.

🗞️Newsletter going out on Friday 13th Feb at 7:45PM U.K. time

Link to sign up in comments.

05/02/2026

This is not a comfortable post.

It challenges some very established ways of thinking about autism, PANS and chronic fatigue.
But it reflects what we keep seeing in clinic.

Three diagnoses. One pattern.
The timing changes the label.
The biology underneath often looks very similar.

If you’re open to sitting with that discomfort, read this week’s blog.

Link in the comments 👇

If you’ve lived with misophonia, you know how brutal it can be. Ordinary sounds don’t just irritate you, they hijack you...
29/01/2026

If you’ve lived with misophonia, you know how brutal it can be.

Ordinary sounds don’t just irritate you, they hijack your nervous system and trigger full fight or flight.

Families can’t eat together.
Breathing or chewing can trigger a visceral reaction, even when it is only seen, not heard.

Most research still treats misophonia as a brain based sound sensitivity, with little focus on what is driving the nervous system underneath.

In our clinic, the things that most often make a difference are:

✔️mast cell and histamine control
✔️calming inflammation
✔️stabilising stress chemistry
✔️supporting serotonin pathways
✔️zinc plus B6 in kryptopyrroluria patterns.

The trigger is not the real problem.
The overloaded system is. Change that, and the symptom changes with it.

27/01/2026

We keep seeing the same pattern on Organic Acids tests in children with anxiety, OCD and sensory overload and this paper explains why.

The research shows that when inflammation is active, histamine rises in the brain and blocks serotonin signalling, not because serotonin is missing but because histamine is getting in the way.

On an Organic Acids Test this often looks like

⚡️Raised quinolinic or kynurenic acid showing the pathway being diverted by inflammation,
⚡️High oxidative stress markers
⚡️Low functional B6 and low or borderline zinc and magnesium.

So the building blocks are there but inflammation has rerouted the pathway.

This is why “boosting serotonin” often doesn’t work.

The real issue is histamine and inflammation blocking the signal.

The focus has to be to:
✔️Calm the immune system
✔️Settle histamine and mast cells ✔️Support the stress response.

When that load comes down, serotonin usually starts working again.

Link to paper in comments 👇

26/01/2026

We talk about anaemia as if it’s just a nutrient problem.
Iron. B12. Folate.
Copper and vitamin A to help iron move and be used.

And yes, those matter.

Absorption matters too. Low stomach acid, coeliac disease, gut inflammation and bacterial or yeast overgrowth can all block iron getting in.

But blood isn’t made just because the ingredients are present.
It’s made when the system is switched on.

That switch is the thyroid.

If thyroid signalling is low, the body struggles to make healthy red blood cells even when nutrients are available.

Which is why some children don’t improve with nutrient support alone.

Sometimes the next step isn’t adding more. It’s checking the thyroid.

Reading an old book on hypothyroidism by Dr Broda Barnes (1976) and this stopped me in my tracks: “I have seen many chil...
24/01/2026

Reading an old book on hypothyroidism by Dr Broda Barnes (1976) and this stopped me in my tracks:

“I have seen many children who suffered from repeated colds followed by complications such as tonsillitis, sinusitis ear and mastoid infections who needed repeated antibiotic treatment and went right on getting new infections until their hypothyroidism was treated”

Sound familiar?

Nearly 50 years old. Still bang on.

This is the kind of medicine that makes sense to me.

Step back. Look at the whole picture. Then decide what actually needs attention.

21/01/2026

There’s a thyroid pattern I keep seeing in PANS and PANDAS.

Low-end T3 (the active thyroid hormone) is common in PANS and PANDAS.

Stress and inflammation get in the way of how it’s used.

Thyroid hormone and adrenals work as a pair.

When cortisol swings, sleep is poor, or the immune system is activated, less effective T3 reaches the brain.

This can look like a child who is always anxious, stuck in rigid OCD, tired but wired, with cold hands and feet, and no buffer for stress.

That’s when thyroid is worth keeping on the table, even if the report says “in range”.

Address

London

Opening Hours

Monday 9:30am - 5:30pm
Tuesday 9:30am - 5:30pm
Wednesday 9:30am - 5:30pm
Thursday 9:30am - 5:30pm
Friday 9:30am - 5:30pm

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