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The Gut-Brain Axis: Understanding the Link Between Anxiety and Tummy Pain in Children

The Gut-Brain Axis: Understanding the Link Between Anxiety and Tummy Pain in Children

Many parents notice a pattern with their child’s tummy aches.

The stomach pain appears before school, social events, sports, or times of stress. Medical tests may come back normal, yet the symptoms are very real — leaving families wondering what is actually happening.

Research continues to show a strong connection between the digestive system and emotional wellbeing through what is known as the gut-brain axis.

Understanding this connection can help explain why anxiety and tummy pain o often go hand in hand in children.

What Is the Gut-Brain Axis?

The gut-brain axis is the communication network between the brain, digestive system, immune system, and nervous system.

These systems are constantly sending messages back and forth through:

In fact, the gut is sometimes referred to as the “second brain” because it contains millions of nerve cells and produces many of the same chemical messengers involved in mood regulation, including serotonin.

This means emotional stress can directly affect digestion — and digestive dysfunction can also influence mood, anxiety, and emotional regulation.

Why Anxiety Often Shows Up as Tummy Pain

Children are still developing emotional awareness and communication skills. Often, the body expresses stress before a child can explain what they are feeling emotionally.

When a child experiences anxiety or stress, the nervous system shifts into a heightened state of alert. This can affect digestion in many ways, including:

This is why anxious children commonly experience:

The pain is not imagined. The gut and nervous system are genuinely reacting to stress signals.

The Cycle Between Anxiety and Gut Symptoms

The relationship between the gut and brain works both ways.

Stress and anxiety can contribute to digestive symptoms, but digestive issues can also increase anxiety.

For example:

Over time, this can create a cycle where:


Anxiety affects the gut → gut symptoms increase stress → the nervous system becomes more sensitive → symptoms continue.

This is why children often need support for both the nervous system and digestive system together.

Factors That Can Influence the Gut-Brain Axis

Several underlying factors may contribute to gut-brain dysfunction in children, including:

Every child is different, which is why an integrative and individualised approach is important.

How a Naturopath Can Support the Gut-Brain Axis

A naturopathic approach looks at the child as a whole — exploring both the physical and emotional contributors to symptoms.

Importantly, naturopathic care works very well alongside counselling, psychology, occupational therapy, and medical care.

Support may include:

Supporting the Nervous System

Helping regulate the stress response through:

Supporting Gut Health

Addressing digestive factors that may be contributing to discomfort and anxiety:

Nutritional Assessment

Nutrients such as iron, zinc, omega-3 fats, magnesium, and B vitamins play important roles in both mood and digestive health.

Optimising nutritional status can help support resilience, emotional regulation, concentration, and nervous system function.

The Importance of a Collaborative Approach

Children often benefit most when care is supportive and multidisciplinary.

Counselling and psychology can help children develop emotional awareness, coping skills, and resilience, while naturopathic support may help address underlying physiological contributors affecting the gut-brain axis.

When the body feels calmer and digestion improves, children often feel more emotionally regulated as well.

A Final Thought for Parents

Tummy aches are one of the most common ways children communicate stress through the body.

Understanding the gut-brain axis helps us move away from the idea that symptoms are “just anxiety” and instead recognise the very real connection between emotional wellbeing and digestive health.

By supporting both the nervous system and gut health together, we can help children feel calmer, more comfortable, and better equipped to thrive.\

If your child is experiencing anxiety or ongoing tummy pain, book an appointment with Jean Jarrett for personalised support addressing the gut-brain connection and nervous system health.