Understanding What’s Really Going On Beneath the Surface

When a child is struggling with ongoing symptoms — poor sleep, gut issues, anxiety, emotional outbursts, poor concentration, hyperactivity, tics, or fatigue — parents are often told that blood tests are “normal.”

Yet as a parent, you know something isn’t quite right.

This is where functional testing, such as Organic Acids Testing (OAT), can be incredibly helpful. Rather than looking for disease, OAT testing helps us understand how a child’s body is functioning at a biochemical level — and why certain symptoms may be showing up.

What Is Organic Acids Testing (OAT)?

An Organic Acids Test (OAT) is a simple urine test that measures organic acids — natural by-products produced during metabolism.

These markers give us valuable insight into how well a child’s body is working across key systems, including:

• Gut health and microbial balance
• Brain chemistry and neurotransmitter activity
• Energy production (mitochondrial function)
• Detoxification pathways
• Functional nutrient needs

Because it’s non-invasive and can usually be done at home, OAT testing is very suitable for children, including those who are sensitive or anxious around medical testing.

What Does OAT Testing Show?

OAT testing does not diagnose disease. Instead, it highlights functional imbalances that may be contributing to a child’s symptoms.

Gut Health & Microbial Imbalance

OAT testing can identify markers linked to yeast and fungal overgrowth, certain bacterial imbalances, and dysbiosis affecting the gut–brain axis.

These imbalances are commonly associated with bloating, constipation or diarrhoea, reflux, poor appetite, skin rashes, immune stress, and behavioural changes.

Neurotransmitters & Brain Chemistry

Markers related to dopamine, serotonin and norepinephrine can help explain anxiety, emotional dysregulation, ADHD-like symptoms, low motivation, tics, or compulsive behaviours.

Rather than simply “boosting” neurotransmitters, OAT helps us understand what is disrupting balance — often inflammation, nutrient depletion, or gut-derived toxins.

Energy Production & Mitochondrial Function

Many children with fatigue, brain fog, poor stamina, or slow recovery show markers suggesting impaired mitochondrial energy production and increased oxidative stress.

This is particularly relevant for children who are frequently unwell, burn out easily, or struggle at school despite trying hard.

Detoxification & Oxidative Stress

OAT testing shows how well a child’s body is coping with environmental toxins, internal metabolic waste, and overall inflammatory load.

When detox pathways are under strain, symptoms may include headaches, irritability, sensory sensitivity, skin issues, poor sleep, and emotional volatility.

Functional Nutrient Requirements

OAT testing can point to functional needs for nutrients such as B-group vitamins, magnesium, amino acids, and glutathione support.

This allows for targeted, lower-dose supplementation, which is especially important for sensitive children who don’t tolerate broad or aggressive protocols.

What Can OAT Testing Help With?

In clinical practice, OAT testing is commonly used to support children with:

• Digestive issues such as constipation, diarrhoea, reflux, and bloating
• Anxiety and emotional regulation challenges
• ADHD-like symptoms and attention difficulties
• Tics, OCD-type behaviours, or PANS/PANDAS patterns
• Poor sleep or frequent night waking
• Fatigue and low energy
• Recurrent infections or immune stress
• Behavioural changes without a clear cause

It is particularly valuable when symptoms affect multiple systems and don’t fit neatly into one diagnosis.

Is OAT Testing Right for My Child?

OAT testing may be especially helpful if your child:

• Has ongoing symptoms despite “normal” blood test results
• Experiences gut issues alongside behavioural or emotional challenges
• Is sensitive to supplements or reacts easily to foods or medications
• Has fluctuating symptoms that worsen with illness, stress, or poor sleep
• Has complex or overlapping concerns rather than a single clear issue

OAT testing is not always the first step for every child, but it can be a powerful tool when we need deeper insight into what is driving symptoms beneath the surface.

A consultation is always recommended to determine whether OAT testing is appropriate and how it fits into your child’s overall care plan.

How OAT Results Are Used

OAT results guide a gentle, step-by-step support plan, which may include:

• Targeted gut and microbial support
• Individualised nutritional therapy
• Nervous system and brain-calming strategies
• Dietary adjustments based on tolerance and needs
• Lifestyle support to reduce overall stress on the body

Importantly, we don’t address everything at once. The focus is on reducing load, supporting foundations, and allowing the body to rebalance gradually.

Supporting Your Child, Not Just Managing Symptoms

OAT testing helps shift the conversation from:

“Nothing is wrong.”
to
“Here’s what your child’s body is asking for.”

It gives parents clarity, direction, and reassurance — and provides a personalised roadmap for care that is thoughtful, gentle, and evidence-informed.

Next Steps

If you’re feeling stuck, confused, or overwhelmed by your child’s symptoms, OAT testing may help uncover the why behind what you’re seeing.

To find out whether Organic Acids Testing is appropriate for your child, we recommend booking a consultation. This allows us to review your child’s history, current symptoms, and previous testing, and to decide on the most supportive next steps.

Every child is different — and understanding their unique biochemistry can be a powerful step toward calmer days, better sleep, and improved wellbeing.