Your gut contains a complete nervous system with 400-600 million neurons called the Enteric Nervous System (ENS) that makes real-time decisions about digestion.

Understanding how this system works reveals why effective gut interventions target the nervous system, not just the gut lining. I discovered this connection during my 16-year Crohn's journey, and work as a gut health coach.

In this article, I’ll explain what the ENS is, how it controls digestion on its own, what happens when it goes wrong, and how you can support your gut naturally.

What Is the Enteric Nervous System?

The enteric nervous system (ENS) is a network of nerve cells spread throughout your gut wall, from your oesophagus down to your rectum.

It's structured in two interconnected layers: one sits between muscle layers and controls movement, while the other one sits near the lining and manages the release of digestive juices and mucus.

Within these layers sit three neuron types working together. Sensors detect what's in your gut, processors decide how to respond, and motors carry out the action.

These neurons use the same chemical messengers as your brain (serotonin, dopamine, acetylcholine), which is why it's often called your second brain.

The system runs continuously without conscious input, coordinating digestion while you sleep, work, or focus on anything else.

How Your Enteric Nervous System Controls Digestion

Sensory neurons constantly scan your gut contents, detecting stretch, chemical changes, and potential threats. When food arrives, these sensors trigger a coordinated response. Muscles contract above the food while muscles below it relax.

This creates peristalsis, the wave-like movement that moves food through your system at the right speed for absorption. The same sensory signals also trigger release of digestive enzymes, stomach acid, and protective mucus matched to what you've eaten.

During fasting, the ENS switches to a different program. It generates sweeping contractions that clean out bacteria and leftover material. This is why fasting can be a powerful way to give your gut time to repair itself.

Throughout all of this, blood flow adjusts automatically to supply working gut segments with the oxygen and nutrients they need.

Does Your Enteric Nervous System Work On Its Own?

Yes, your ENS can work on its own without input from the brain. Your brain does connect to it through the vagus nerve, but this connection just provides gentle guidance while the ENS handles the day-to-day decisions.

However, during stress, your brain can override the system entirely. Stress hormones actively suppress ENS function to redirect energy elsewhere. This is why anxiety causes immediate digestive upset. Your brain is literally shutting down your gut's normal operations.

The ENS also coordinates directly with immune cells in your gut wall, triggering protective responses without waiting for brain approval.

What Happens When Your Enteric Nervous System Goes Wrong

Sometimes ENS neurons don't develop properly from birth. In conditions like Hirschsprung disease, missing neurons mean the bowel can't function normally.

In functional disorders like IBS, the sensory neurons become oversensitive and turn normal gut activity into pain signals.

Inflammatory conditions like Crohn's and ulcerative colitis directly damage ENS neurons. This creates a vicious cycle. Damaged neurons can't coordinate digestion properly, which keeps inflammation going, which damages more neurons.

This is why digestive symptoms can persist even after the visible inflammation heals. The nerve damage underneath remains. Recent research even suggests ENS problems may appear early in Parkinson's disease.

The good news is that unlike brain neurons, ENS neurons can adapt and heal when given proper support. So how can you support your ENS and help it heal? The approach is simpler than you might think.

How to Support Your Enteric Nervous System Naturally

Stress management is crucial because stress hormones actively suppress ENS function and disrupt coordination. This is why eating in a relaxed state matters. It lets your body support digestion instead of fighting it.

Plant-based remedies can also support your ENS through multiple pathways.

Anti-inflammatory herbs like cat's claw protect nerve cells from damage, while soothing herbs like marshmallow root coat your gut lining and calm irritation. Adaptogens such as ashwagandha reduce stress, and digestive herbs like fennel relax gut muscles.

Cosmic Hue combines these science-backed plants along with echinacea, astragalus, and nettle into one daily cup.

The key to supporting your ENS is consistency rather than intensity. Regular gentle support allows it to gradually restore its natural function if it's been damaged.

Conclusion

Your enteric nervous system coordinates digestion independently through a sophisticated network of neurons. When it works properly, you don't notice it. When it doesn't, the effects show up in your mood, energy, and overall wellbeing.

Supporting your ENS means addressing root causes rather than just managing symptoms. This involves stress reduction, mindful eating, and plant-based support like Cosmic Hue.

Understanding how your “second brain” functions gives you the power to make better decisions for both your gut and overall health. We're here to support you on that journey.

Author: Manny is the founder of Fifth Ray and a certified Gut Health Coach. After battling Crohn's Disease for 16 years, he transformed his gut health through plant-based healing. His story has been featured on BBC, ITV, and Daily Mail.

Disclaimer: This information is for education only. Cosmic Hue is not intended to diagnose, treat, cure, or prevent any disease. Always speak to your healthcare provider before changing your routine.

References

Fleming, M. A., 2nd, Ehsan, L., Moore, S. R., & Levin, D. E. (2020). The Enteric Nervous System and Its Emerging Role as a Therapeutic Target. Gastroenterology research and practice, 2020, 8024171. https://doi.org/10.1155/2020/8024171

Chanpong, A., Borrelli, O., & Thapar, N. (2022). Recent advances in understanding the roles of the enteric nervous system. Faculty reviews, 11, 7. https://doi.org/10.12703/r/11-7

Valdetaro, L., Ricciardi, M. C., Almeida, P. P., Stockler-Pinto, M. B., & Tavares-Gomes, A. L. (2026). The Enteric Nervous System as a Mediator of Microbiota-Gut-Brain Interactions in Parkinson's Disease. Journal of neurochemistry, 170(1), e70339. https://doi.org/10.1111/jnc.70339

Patel, K., & Thavamani, A. (2023). Physiology, peristalsis. In StatPearls. StatPearls Publishing. https://www.ncbi.nlm.nih.gov/books/NBK556137/

NHS. (2023, January 27). Hirschsprung's disease. https://www.nhs.uk/conditions/hirschsprungs-disease/