5 ways hormones make your digestion go rogue!

Ever feel like your digestion has a mind of its own?

One day, everything feels normal. The next, you’re dealing with bloating, cramps, constipation, diarrhoea, or feeling uncomfortably full after eating. While we often blame food, another major factor is often overlooked: your hormones.

Hormones and digestion are closely connected. These chemical messengers help regulate everything from appetite and stomach acid production to gut motility and nutrient absorption. When hormone levels fluctuate due to stress, menstrual cycles, menopause, illness, or lifestyle factors, your digestive system often feels the effects too.

Let’s explore five common ways hormones can disrupt digestion and what you can do to support better gut health.

1. Digestive hormones control how food moves through your gut

Digestion relies on a complex network of hormones that help coordinate the breakdown and movement of food.

Some of the most important include:

Gastrin
Cholecystokinin (CCK)
Secretin
Ghrelin
Motilin

These hormones regulate appetite, stomach acid production, digestive enzyme release, bile flow, and gut motility.¹

When these hormones become disrupted, digestion can become less efficient. For example, altered ghrelin levels may increase hunger even after eating, while reduced CCK activity may impair fat digestion and contribute to bloating or discomfort.²

Interestingly, emerging research suggests that the physical structure of food itself may influence which digestive hormones are released and how effectively digestion takes place.³

2. Hormonal fluctuations can trigger bloating, constipation and diarrhoea

Many women notice changes in digestion during menstruation, pregnancy, perimenopause and menopause. This is because hormones, such as oestrogen and progesterone, directly influence gut motility. Rising progesterone levels can slow digestion and contribute to constipation, while falling hormone levels around menstruation may increase bowel activity and lead to looser stools or diarrhoea.

These natural hormonal fluctuations are one reason digestive symptoms often appear to come and go without obvious dietary changes.

3. Stress hormones can slow digestion

Have you ever experienced “butterflies” in your stomach before a big event or felt digestive discomfort during a stressful week? That’s your gut-brain connection in action!

When you’re stressed, your body releases hormones such as cortisol and adrenaline. These activate the body’s fight-or-flight response, shifting resources away from digestion and towards immediate survival.

Over time, repeated or chronic stress can:

Slow gut motility
Alter stomach acid production
Increase digestive discomfort
Contribute to bloating and cramping
Trigger irregular bowel habits

This is why supporting stress resilience can be just as important as improving your diet when it comes to digestive health. Chuckling Goat’s Ashwagandha tincture is proven to help reduce stress and anxiety, and help support thyroid function.

4. Inflammation and illness can disrupt digestive hormones

When your body is fighting an infection, the immune system releases inflammatory signalling molecules known as cytokines.

These compounds help coordinate the immune response, but they can also affect digestion. This is one reason illness is often accompanied by nausea, reduced appetite, bloating or changes in bowel habits.

Gastrointestinal infections may also temporarily disrupt hormones involved in stomach acid production and gut motility, contributing to symptoms such as diarrhoea and digestive discomfort.

5. Your gut microbiome influences hormones too

The relationship between hormones and digestion works both ways.

Your gut microbiome plays an important role in hormone metabolism, immune regulation and inflammation. Research increasingly shows that an imbalanced microbiome can influence hormone signalling throughout the body, while hormonal changes can also alter the composition of the gut microbiome.

This two-way relationship may help explain why digestive symptoms often accompany periods of hormonal change, stress, or illness.

Supporting hormones & digestion naturally

While some hormonal changes are unavoidable, there are several ways to support both your hormones and digestion:

Prioritise a diverse, fibre-rich diet
Include fermented foods such as Kefir and kimchi
Stay hydrated throughout the day
Manage stress through movement, breathwork or time outdoors
Support your sleep and circadian rhythm
Consider targeted support for hormonal changes during menopause or periods of high stress

Hormones and digestion are deeply interconnected. Understanding this relationship can help explain why digestive symptoms sometimes appear even when your diet hasn’t changed. By supporting both your gut and your hormones, you can create a stronger foundation for digestive comfort and overall wellbeing.

Looking for more support? Check out Shann’s quick and easy tips for balancing hormones naturally here.

Any questions? Contact one of our Nutritional Therapists via live chat, weekdays from 8am to 8pm.