Sjögren’s disease and gut health

Sjögren’s disease is often described through its most visible symptoms. Dry eyes. Dry mouth.

But for many people living with the condition, the most disruptive symptoms are not always the ones people expect.

Digestive issues are common in Sjögren’s disease, yet they remain under-recognised, under-discussed, and too often dismissed.

This needs to change.

Because Sjögren’s disease is not just a glandular condition. It is a systemic autoimmune disease that can affect the entire body, including the gastrointestinal system.

The scale of the issue

Research suggests that up to 50 to 70 percent of people with Sjögren’s disease experience gastrointestinal symptoms at some point in their illness.

Despite this, gut health is rarely a primary focus in diagnosis or ongoing care.

This creates a gap between what patients experience and what is routinely addressed.

A gap where symptoms persist without clear answers.

More than dryness: where digestion begins

Digestion does not start in the stomach. It starts in the mouth.

Saliva plays a critical role in:

• breaking down food
• supporting safe swallowing
• protecting the oesophagus
• maintaining microbial balance

In Sjögren’s disease, reduced saliva production disrupts this first stage of digestion.

Food may not be properly broken down. Swallowing can become difficult or uncomfortable. This can place additional strain on the digestive system further along.

What begins as dryness can quickly become something more complex.

Common gut-related symptoms

People living with Sjögren’s disease frequently report:

• persistent bloating
• abdominal pain or discomfort
• reflux and heartburn
• difficulty swallowing
• nausea
• constipation or diarrhoea
• increased food sensitivities

For some, these symptoms are intermittent. For others, they are chronic and significantly affect quality of life.

And yet, many patients report that these symptoms are not always recognised as part of Sjögren’s disease.

The gut-immune connection

The gut is not just a digestive organ. It is a central part of the immune system.

Around 70 percent of the body’s immune cells are located in the gut.

The gut microbiome plays a key role in regulating inflammation and immune responses.

In autoimmune diseases, including Sjögren’s, this relationship becomes disrupted.

Emerging research shows:

• altered gut microbiome composition in Sjögren’s patients
• links between gut bacteria and systemic inflammation
• potential associations between microbiome imbalance and disease severity

This area of research is still evolving, but the direction is clear.

The gut and the immune system are deeply connected. When one is affected, the other is rarely untouched.

Associated gastrointestinal conditions

People with Sjögren’s disease are also more likely to experience co-existing gastrointestinal conditions.

These may include:

• irritable bowel syndrome
• coeliac disease
• gastro-oesophageal reflux disease
• gastritis

Studies suggest that functional gastrointestinal disorders, such as IBS, are significantly more common in people with autoimmune diseases, including Sjögren’s.

This overlap can make diagnosis and management more complex.

Symptoms may be attributed to one condition while another remains undiagnosed.

When symptoms are overlooked

Digestive symptoms are often normalised.

They are attributed to stress, diet, or lifestyle. They are seen as common and therefore less urgent.

For people with Sjögren’s disease, this can lead to:

• delayed investigation
• fragmented care across multiple specialists
• ongoing symptoms without clear management
• feeling dismissed or not taken seriously

The result is not just physical discomfort.

It is a loss of confidence in the healthcare process.

The real impact on daily life

Gut health issues can affect almost every part of daily life.

They can influence:

• energy levels and fatigue
• nutrient absorption and overall health
• the ability to eat comfortably
• social interactions and quality of life
• mental health and emotional wellbeing

For someone already managing a chronic autoimmune condition, this added burden can be significant.

Eating becomes something to manage, not something to enjoy.

Supporting gut health in Sjögren’s disease

There is no single solution.

Managing gut health in Sjögren’s disease requires an individualised approach, often involving multiple strategies.

These may include:

• medical assessment and management of specific conditions
• dietary adjustments based on symptoms and tolerances
• maintaining hydration to support digestion
• addressing oral health and saliva production
• exploring the role of the microbiome

What works for one person may not work for another.

This is why listening to patients and recognising the full scope of their symptoms is essential.

Why awareness matters

When gut health is not part of the Sjögren’s conversation, patients are left to connect the dots themselves.

Awareness can change that.

It can:

• validate patient experiences
• encourage earlier and more open discussions
• lead to more comprehensive care
• reduce the risk of symptoms being overlooked

Most importantly, it shifts the understanding of Sjögren’s disease from a condition defined by dryness to one recognised for its systemic impact.

A more complete picture of Sjögren’s

Sjögren’s disease affects more than what we can see.

For many, the most challenging symptoms are the ones that are hardest to explain.

Gut health is one of them.

Recognising this is not just about adding another symptom to a list.

It is about acknowledging the full reality of living with Sjögren’s disease.

Because better understanding leads to better care.

And better care starts with listening.