What are the most common digestive issues?

Common digestive issues include irritable bowel syndrome (IBS), gastro-oesophageal reflux disease (GORD), bloating and functional dyspepsia, constipation, diarrhoea, inflammatory bowel disease (Crohn's and ulcerative colitis), and food intolerances. Many of these exist on a spectrum and are significantly influenced by diet, gut microbiome health, stress, and the gut-brain axis.

What complementary approaches help with digestive health?

Nutritional therapy directly addresses dietary contributors — identifying trigger foods, optimising fibre intake, supporting gut microbiome diversity, and addressing nutritional deficiencies. Acupuncture has evidence for IBS, functional dyspepsia, and constipation. Psychological approaches — particularly gut-directed hypnotherapy and cognitive-behavioural therapy for IBS — have robust evidence. Probiotics have variable but promising evidence across specific digestive conditions.

How does stress affect digestion?

The gut-brain axis is highly bidirectional — psychological stress directly alters gut motility, visceral sensitivity, gut barrier function, and microbiome composition. Many digestive conditions — particularly IBS and functional dyspepsia — are significantly stress-sensitive. This does not mean these conditions are 'in the mind' — the physiological pathways are real and measurable — but it does mean that addressing stress is a legitimate and important component of digestive health management.

When do digestive symptoms require medical investigation?

Blood in stool, black or tarry stools, unexplained significant weight loss, persistent vomiting, severe abdominal pain, new symptoms in those over 50, and symptoms worsening despite lifestyle modification should all prompt medical assessment. These features may indicate conditions requiring specific medical or surgical management.

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Digestive Issues

Digestive issues refer to a range of gastrointestinal symptoms affecting digestion, absorption, and gut comfort.

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Reviewed by Dr. Ian Henderson · Microbiobial Health & Medicine26 March 2026Research-supported

Quick answer

Digestive issues include a range of symptoms affecting gut function, often linked to diet, stress, and microbiome health.

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Bloating,gas,abdominal discomfort,constipation,diarrhea,food sensitivities

What is Digestive Issues?

Digestive issues include symptoms such as bloating, discomfort, irregular bowel movements, and food sensitivities.

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Overview

Symptoms & Affected Systems

Contributing Factors

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When to Seek Professional Help

Related Conditions

Irritable Bowel Syndrome

Leaky Gut

Inflammation

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