The Nervous System Reset Blog Series – Part Five: The Gut–Stress Connection: When Anxiety Hits Your Belly

Published on June 15, 2026

Part of the series: The Nervous System Reset – A Blog for Stress, Anxiety & Overwhelm

By Collette Lees

The Gut–Stress Connection: When Anxiety Hits Your Belly

We all experience stress differently, however the effects on the body follow a similar path. When stress becomes a constant, it can significantly affect digestive function, appetite, and the way we process and absorb nutrients.

From a nervous system perspective, this makes sense. When we are stressed, the body shifts into a sympathetic “fight or flight” state. In this mode, digestion is not prioritised. Energy is redirected toward survival responses rather than rest, repair, and nutrient absorption. This is why stress can so quickly show up in the gut.

You may notice changes like reduced appetite, bloating, sluggish digestion, or a sense that food just “sits” differently in the body.

In this blog, I explore this gut–stress connection more deeply and share practical ways to support digestion during times of stress.

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It feels important to write about this now, because it is something I am moving through myself in real time.

This past week has been especially tense, and it has been a reminder of how directly the nervous system and gut are connected.

We all respond to stress differently. Some people notice an increase in appetite and turn toward food for comfort. For others, like myself, stress completely switches the digestive system off. My appetite disappears. My gut tightens. Eating feels difficult, as though the body is fully locked into protection mode, because it is. It is a very physical reminder that the body is prioritising safety over nourishment.

For those who do find themselves reaching for food during stress, it is often not nutrient-dense meals but highly processed options that are quick, comforting, and high in sugar or fat. While these can offer short-term relief, they don’t tend to support the body’s deeper need for stability and regulation.

What the body actually needs during stress is not restriction or perfection—it is simplicity, warmth, and ease.

When digestion is compromised, think of food as support rather than performance. The goal is not to eat perfectly, but to make things easier for your body to process.

Warm, soft, and gently cooked foods are often the most supportive. This is where slow-cooked meals, soups, stews and warm oats in the morning can be especially helpful.

Root vegetables are in season and naturally grounding—carrots, sweet potatoes, and potatoes all offer gentle nourishment. Pairing these with warming spices such as ginger, turmeric, and cinnamon can further support digestion and circulation.

Including a source of protein in each meal—whether animal-based or vegetarian—helps stabilise energy and supports recovery during stress (see protein combining handout if needed). https://www.natracollhealth.com/free-resources

If appetite is low, soups can be particularly useful, especially when paired with something simple like sourdough or dark rye for extra grounding.

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Supporting the gut and nervous system (simple at-home tools)

During times of stress, it can also help to bring in simple, supportive practices that calm the nervous system and gently support digestion:

• Warm herbal teas such as chamomile, cinnamon, lavender or ginger

• Gentle walks after meals to support gut motility

• Slow, intentional breathing before eating

• Warm compresses or heat on the abdomen

• Castor oil packs over the abdomen to support relaxation and digestive ease (available via my website) https://www.natracollhealth.com/free-resources 

These are not about doing more—they are about giving the body permission to downshift.

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Bringing it back to the nervous system

When we are in prolonged stress, digestion is often one of the first systems to feel the impact. This is not something to push through or override—it is a signal from the body asking for safety, slowness, and support.

The more we learn to recognise these patterns, the easier it becomes to work with the body rather than against it.

This is the foundation of my Nervous System Reset work—supporting the body to return to a state where digestion, rest, and regulation can function more naturally and with ease again.

If you’re noticing these patterns in your own body and would like deeper support, you can learn more about the Nervous System Reset program here: https://www.natracollhealth.com/nervous-system-reset

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A final note

If this topic resonates, it may also help to revisit earlier blogs around slowing down, pausing, and returning to breath. Sometimes the simplest tools are the ones we forget first when stress rises.

One of the most supportive things we can do is not try to fix everything—just gently support the body back into safety, one small choice at a time.