What Is Good Gut Food? A Practical Guide to Gut Health

Introduction

Do you ever finish a balanced lunch or a wholesome home-cooked dinner, only to find yourself struggling with uncomfortable bloating, a heavy stomach, or a sudden dip in energy an hour later? Digestive niggles are incredibly common across the UK. Millions of us experience occasional sluggishness, stomach discomfort, irregular bowel habits, or vague fatigue that leaves us feeling far from our best.

In recent years, medical science has highlighted just how central the digestive tract is to overall vitality. Beyond simply breaking down what we eat, the digestive system acts as a complex control centre for immune function, mood regulation, and nutrient absorption. When people ask, "what is good gut food?", they are usually looking for clear, actionable advice on which ingredients truly nourish their digestive system, ease everyday symptoms, and support long-term well-being.

In this guide, we will break down the essential components of a gut-friendly diet. We will examine the crucial differences between prebiotic fuel and probiotic live cultures, explore ten of the most effective gut-nourishing foods you can easily add to your UK grocery shop, and look at common dietary habits that can throw your digestive environment off balance. Furthermore, we will explain how gut health intersects with broader systemic vitality, including energy levels, vitamin status, and metabolic function.

At Blue Horizon, we believe that health journey decisions should be calm, structured, and clinically responsible. Improving your digestion is not about drastic, restrictive trends or chasing overnight quick fixes. Instead, we advocate a sensible, phased approach: consulting your GP to rule out underlying clinical issues, maintaining a thoughtful symptom and dietary diary, and using structured blood testing as a helpful snapshot when you need a clearer picture of your overall health.

Understanding the Gut Microbiome

To understand what makes a food good for your gut, it is helpful to start with the ecosystem living inside you: the gut microbiome. The human gastrointestinal tract is home to trillions of microorganisms, including hundreds of species of bacteria, as well as fungi and other microscopic organisms. For a broader introduction, read this guide to what the gut microbiome is and why it matters.

Far from being unwanted invaders, these microbes live in a mutually beneficial partnership with us. When provided with the right nutrients, beneficial bacteria perform several vital tasks:

Nutrient Extraction: They break down complex dietary fibres that human enzymes cannot digest on their own.
Compound Production: As they ferment fibre, they produce short-chain fatty acids (SCFAs) such as butyrate, acetate, and propionate. These fatty acids nourish the cells lining the colon, support the gut barrier, and help regulate systemic inflammation.
Immune System Support: Approximately 70% of the body's immune cells reside along the gut lining. A healthy microbial balance helps train the immune system to distinguish between harmless compounds and genuine pathogens.
Vitamin Synthesis: Good bacteria manufacture essential vitamins, including certain B vitamins and Vitamin K.

Why Diversity Matters

A healthy microbiome is a diverse microbiome. Think of your gut as a rich natural habitat, like a British woodland. A woodland containing a wide variety of trees, plants, insects, and birds is resilient against disease, harsh weather, and external disruptions. Conversely, a woodland dominated by only one species is fragile.

In the same way, harbouring a broad spectrum of bacterial species in your gut helps maintain digestive stability. Eating a narrow, repetitive diet can starve certain beneficial bacterial strains, allowing less helpful microbes to multiply. When this balance is disturbed—a state often referred to by scientists as dysbiosis—you may experience increased gas, bloating, irregular bowel movements, and heightened sensitivity to everyday meals.

What Is Good Gut Food? The Core Pillars

When evaluating whether a food is good for your gut, it helps to look beyond basic calorie and macronutrient counts. Gut-healthy foods generally fall into four key nutritional categories, each serving a distinct purpose in supporting your digestive machinery.

1. Prebiotic Fibre (The Fuel)

Prebiotics are non-digestible dietary fibres and carbohydrates that pass through the upper digestive tract unchanged. Once they reach the large intestine, they serve as specialized food for your beneficial bacteria. Without adequate prebiotic fibre, friendly microbes cannot produce the short-chain fatty acids needed to keep the gut lining healthy and intact.

Common prebiotic compounds include inulin, fructooligosaccharides (FOS), galactooligosaccharides (GOS), pectin, and resistant starch.

2. Probiotic Foods (The Beneficial Microbes)

While prebiotics feed the bacteria already in your system, probiotic foods actively introduce live, beneficial microorganisms into your digestive tract. These foods are created through natural fermentation processes, where bacteria or yeasts convert carbohydrates into organic acids, alcohol, or carbon dioxide.

Consuming live cultures regularly helps bolster the diversity of your gut flora, temporarily occupying space along the gut wall and preventing opportunistic organisms from taking hold.

3. Polyphenol-Rich Plant Foods

Polyphenols are naturally occurring plant compounds responsible for giving fruits, vegetables, herbs, and spices their vibrant colours. While polyphenols are widely known for their antioxidant properties, only a small percentage are absorbed directly in the small intestine. The remaining polyphenols travel down to the colon, where gut bacteria break them down into active, health-promoting metabolites.

Polyphenols act almost like a selective tonic for the microbiome, encouraging the growth of beneficial strains like Bifidobacteria while inhibiting less desirable microbes.

4. Soothing Whole Foods and Hydration

Alongside prebiotics, probiotics, and polyphenols, your digestive system relies on foods that provide physical lubrication and gentle structural bulk. Soluble fibres absorb water to form a soft gel, smoothing the passage of stool through the bowel. Drinking sufficient fluids—primarily plain water and herbal teas—is essential, as fibre requires water to work effectively. Without adequate hydration, increasing dietary fibre can lead to constipation rather than relief.

Key Takeaway: Good gut food is not a single superfood. It is a varied pattern of eating built around prebiotic fibre to feed good bacteria, fermented foods to introduce live cultures, polyphenols to protect the gut environment, and adequate water to keep digestion moving smoothly.

Top 10 Gut-Healthy Foods to Include in Your Diet

Integrating gut-nourishing ingredients into your routine does not require expensive specialist products or complex recipes. Many of the most powerful gut foods are everyday staples available at any local UK supermarket. Here are ten excellent options to consider adding to your weekly shop.

1. Live Plain Yogurt and Kefir

Live plain yogurt and fermented milk drinks like kefir are exceptionally rich sources of natural probiotics. Kefir is made by fermenting milk with kefir grains, resulting in a slightly tart, effervescent drink that often contains a broader variety of bacterial and yeast strains than standard yogurt.

Why it helps: Delivers live cultures such as Lactobacillus and Bifidobacterium directly to the digestive tract.
Kitchen tip: Choose unflavoured, unsweetened versions to avoid added sugars that can feed unwanted bacteria. Top with a handful of fresh berries or a sprinkle of seeds for breakfast.

2. Sauerkraut and Kimchi

Sauerkraut (fermented cabbage) and kimchi (a traditional Korean dish of salted, fermented vegetables and spices) offer a powerful combination of prebiotic fibre and live probiotic organisms created during the fermentation process.

Why it helps: The natural lactic acid fermentation enhances nutrient bioavailability and provides live beneficial bacteria alongside cabbage fibre.
Kitchen tip: Look for raw, unpasteurised versions in the chilled section of the supermarket. High-heat pasteurisation kills the live cultures. Add a small forkful to salads, grain bowls, or alongside grilled proteins.

3. Oats and Whole Grains

Oats are packed with a specific type of soluble fibre known as beta-glucan. Whole grains such as barley, rye, quinoa, and brown rice retain their outer bran layers, offering a complex mix of insoluble and soluble fibre.

Why it helps: Beta-glucan forms a soothing gel in the stomach, slowing digestion, stabilising blood sugar levels, and feeding beneficial colon bacteria.
Kitchen tip: Start your morning with warm porridge made with jumbo rolled oats, or prepare overnight oats soaked in milk or water with sliced fruit.

4. Apples and Pears

Apples and pears are accessible, portable, and naturally high in pectin, a unique soluble fibre that acts as a prebiotic.

Why it helps: Pectin is fermented by colon bacteria to produce high amounts of butyrate, a short-chain fatty acid that strengthens the intestinal barrier and reduces localized gut inflammation.
Kitchen tip: Always eat apples and pears with their skins on, as much of the insoluble fibre and rich polyphenol compounds are concentrated in the peel.

5. Beans, Lentils, and Chickpeas

Legumes are nutritional powerhouses for digestive health. They contain high amounts of dietary fibre, plant protein, and resistant starch—a type of carbohydrate that resists upper digestive enzymes and ferments in the large intestine.

Why it helps: Promotes microbial diversity and encourages regular bowel motility by adding bulk to stools.
Kitchen tip: If you are not used to eating pulses, introduce them gradually to give your gut flora time to adapt. Canned lentils and chickpeas are convenient; ensure you rinse them well under cold water before cooking to make them easier to digest.

6. Onions, Garlic, and Leeks

Members of the Allium family are among the richest dietary sources of inulin and fructooligosaccharides (FOS).

Why it helps: Inulin directly stimulates the growth of friendly Bifidobacteria, supporting healthy immune signaling and bowel regularity.
Kitchen tip: Use diced onions, crushed garlic, and sliced leeks as the aromatic base for soups, stews, casseroles, and pasta sauces. Cooking them gently softens the fibre while retaining their prebiotic value.

7. Flaxseeds and Chia Seeds

These tiny seeds are dense in soluble mucilage fibre, insoluble roughage, and essential omega-3 fatty acids.

Why it helps: When mixed with liquid, chia and ground flaxseeds form a thick gel that lubricates the digestive tract, encouraging smooth transit and soothing irritated gut walls.
Kitchen tip: Milled (ground) flaxseeds are easier for the body to digest than whole seeds. Stir a tablespoon of ground flaxseed or chia seeds into porridge, yogurt, or smoothies.

8. Berries and Dark Leafy Greens

Blueberries, blackberries, raspberries, spinach, kale, and Swiss chard are exceptionally rich in plant polyphenols, vitamins, and insoluble dietary fibre.

Why it helps: Polyphenols act as natural antioxidants, protecting the gut lining from oxidative stress while selectively nourishing health-promoting bacterial strains.
Kitchen tip: Aim for a colourful plate. Mixing deep purple berries with dark green vegetables ensures you receive a broad spectrum of protective plant compounds.

9. Miso and Tempeh

Miso (a traditional Japanese paste made from fermented soya beans, salt, and koji culture) and tempeh (a dense block of fermented whole soya beans) bring rich umami flavours alongside gut-friendly benefits.

Why it helps: Fermentation breaks down the complex phytic acid and proteins in soya beans, making nutrients easier to absorb while introducing beneficial microbes and prebiotics.
Kitchen tip: Whisk a spoonful of miso paste into warm water for a quick broth, or use it in salad dressings. Avoid boiling miso directly, as intense heat can destroy the sensitive probiotic cultures.

10. Ginger and Herbal Teas

Fresh ginger root has been valued for centuries as a digestive aid. Herbal teas such as peppermint, chamomile, and fennel also offer gentle digestive support.

Why it helps: Ginger contains gingerols, natural compounds that help stimulate gastric emptying, encourage normal intestinal contractions (motility), and ease feelings of nausea or upper stomach fullness.
Kitchen tip: Steep sliced fresh ginger root in boiling water for five to ten minutes for a refreshing post-meal tea.

Food Category	Example Foods	Primary Gut Benefit
Prebiotic Fibres	Onions, garlic, oats, apples, lentils	Feeds beneficial bacteria; produces protective short-chain fatty acids.
Probiotic Foods	Live yogurt, kefir, sauerkraut, kimchi, miso	Introduces live, friendly micro-organisms to increase gut diversity.
Polyphenol Sources	Berries, dark leafy greens, dark chocolate, green tea	Protects gut wall from oxidative stress; encourages friendly bacterial growth.
Soothing Mucilage	Chia seeds, ground flaxseeds	Forms a lubricating gel to smooth stool transit and comfort the gut lining.

For more practical ideas, explore these five ways to support your gut microbiome.

Foods and Habits That Can Disrupt Gut Harmony

Just as certain foods nourish your microbial ecosystem, other dietary patterns and lifestyle factors can disrupt it. You do not need to aim for perfection, but reducing exposure to common digestive irritants can significantly improve how your stomach feels.

Ultra-Processed Foods and Refined Sugars

Diets dominated by ultra-processed meals, refined flour, and added sugars provide very little dietary fibre to feed beneficial bacteria. Instead, simple sugars are quickly absorbed high up in the small intestine, leaving the microbes lower down starving for prebiotic fuel. Over time, high-sugar diets can foster the overgrowth of opportunistic yeasts and less desirable bacterial species.

Excessive Saturated Fats and Fried Foods

While healthy fats (such as those found in extra virgin olive oil, avocados, nuts, and oily fish) support overall health, heavy consumption of greasy, deep-fried foods can slow down gastric emptying. Highly fatty meals can trigger indigestion, heartburn, and rapid transit in sensitive individuals, as well as altering bile acid production in ways that favour inflammatory bacteria.

Artificial Sweeteners, Alcohol, and Excessive Caffeine

Alcohol: Regular or heavy alcohol consumption can irritate the mucosal lining of the stomach and small intestine, increasing intestinal permeability and altering bacterial composition.
Caffeine: While a morning cup of coffee can stimulate bowel movements, excessive caffeine can overstimulate the digestive tract, leading to loose stools, stomach cramps, or acid reflux.
Artificial Sweeteners: Some non-nutritive sweeteners and polyols (sugar alcohols like sorbitol or xylitol) can draw water into the bowel or be rapidly fermented by bacteria, causing significant gas, bloating, and watery stools in sensitive digestive systems.

Non-Dietary Stressors: Stress and Sleep

The gut and the central nervous system are in constant two-way communication via the vagus nerve and hormonal pathways—a connection known as the gut-brain axis. Psychological stress causes the body to release stress hormones like cortisol, which can slow digestion, alter gut motility, reduce protective mucus secretions, and shift the balance of the microbiome. Poor sleep patterns similarly disrupt the circadian rhythms of your digestive organs.

How Gut Health Connects to Systemic Vitality

Digestive symptoms rarely exist in a vacuum. Because the gut is the primary gateway for taking in fuel and nutrients, a compromised digestive environment can ripple across your entire body.

When digestion is sluggish, inflamed, or imbalanced, nutrient absorption can become sub-optimal. Even if you are eating a nutrient-dense diet, your body may struggle to efficiently extract and absorb critical vitamins and minerals, including:

Vitamin B12 and Folate: Essential for red blood cell formation, nerve function, and cellular energy production.
Iron (Ferritin): Vital for oxygen transport throughout the bloodstream. Poor absorption can leave you feeling chronically exhausted, breathless, and cold.
Vitamin D: Crucial for bone strength, immune regulation, and muscle function.
Magnesium: A vital mineral cofactor involved in muscle relaxation, nerve transmission, and cellular energy release.

Furthermore, systemic conditions can manifest with symptoms that closely mimic primary gut issues. For example, an underactive thyroid gland (hypothyroidism) slows down metabolic processes throughout the body, frequently causing persistent constipation, weight gain, brain fog, and low mood. Conversely, an overactive thyroid can cause frequent loose stools and unexplained weight loss.

This interconnectedness highlights why focusing solely on isolated dietary tweaks is sometimes not enough. Seeing the bigger picture—combining dietary improvements with clinical insight—is the most effective way to restore your energy and well-being. You can read more about improving gut and digestive health alongside lifestyle and thyroid considerations.

Real-World Scenarios: Navigating Digestive and Health Symptoms

To illustrate how diet, lifestyle, and broader health assessments work together, consider these real-world scenarios.

Scenario 1: Exhaustion Alongside Sluggish Digestion

Imagine you have been working hard to improve your diet by adding oats, legumes, and live yogurt. While your bowel habits have become somewhat more regular, you still wake up feeling unutterably exhausted every morning, suffering from heavy limbs and persistent brain fog.

In this situation, your tiredness might not be a simple lack of sleep. It could point to a nutrient absorption issue, such as low ferritin (iron stores) or depleted Vitamin B12. If your standard GP blood tests come back within normal limits but you still feel unwell, a broader health snapshot panel—such as a Gold Thyroid blood test checking ferritin, folate, B12, Vitamin D, and inflammatory markers like C-Reactive Protein (CRP)—can provide valuable context to discuss with your doctor.

Scenario 2: Feeling Stuck After Antibiotic Treatment

Consider someone who recently completed a necessary course of broad-spectrum antibiotics for a chest infection. Since finishing the medication, their stomach feels easily unsettled, and they experience unpredictable digestive discomfort after standard meals.

Antibiotics are essential medical tools, but they cannot distinguish between harmful pathogens and beneficial gut bacteria. Following antibiotic therapy, focusing on a structured recovery plan incorporating probiotic foods (like kefir or sauerkraut) and prebiotic fibres (like apples and cooked oats) helps rebuild microbial diversity. If fatigue or digestive irregularity lingers for months after treatment, a consultation with a GP is the right step to ensure no secondary issue has developed.

Scenario 3: Digestive Changes Accompanied by Feeling Cold and Sluggish

Suppose you notice that your bowel movements have slowed down significantly, accompanied by unexpected dry skin, feeling unusually sensitive to cold weather, and unexplained weight changes.

While increasing dietary fibre and drinking more water is a good general practice, these combined symptoms may indicate that your thyroid gland is producing insufficient hormones. In this case, dietary changes alone will not resolve the issue. Checking thyroid markers—such as Thyroid Stimulating Hormone (TSH), Free T4, and Free T3—alongside cofactors like magnesium and cortisol, can provide your GP with the clear information needed to evaluate your metabolic health. The Thyroid Premium Bronze test is one focused option to explore with your healthcare professional.

The Blue Horizon Approach to Digestive and Systemic Health

At Blue Horizon, we advocate a measured, clinically responsible journey for investigating mystery symptoms and optimizing your well-being. We call this the Blue Horizon Method. Rather than rushing into expensive, unproven health trends or attempting to self-diagnose complex conditions, we recommend following three structured steps.

[Step 1: Consult Your GP] 
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[Step 2: Structured Self-Check & Diary] 
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[Step 3: Targeted Blood Snapshot (Optional)]

Step 1: Consult Your GP First

Your NHS GP is your primary partner in healthcare. If you are experiencing persistent digestive changes, ongoing tiredness, abdominal discomfort, or changes in bowel habits, your GP should always be your first point of call. They can perform essential clinical rule-outs, screening for conditions such as coeliac disease, inflammatory bowel disease (IBD), gastrointestinal infections, or thyroid dysfunction.

Safety Note: Sudden or severe medical symptoms always warrant urgent clinical attention. If you experience severe or agonizing abdominal pain, persistent vomiting, difficulty swallowing, bloody or black tarry stools, unexplained rapid weight loss, facial swelling, or severe shortness of breath, seek immediate medical care via your GP, A&E, or by calling 999.

Step 2: Use a Structured Self-Check Approach

Before making drastic changes to your diet or requesting complex tests, spend two to three weeks keeping a simple daily health diary. Document:

What you eat and drink: Note meals, snacks, water intake, and alcohol consumption.
Digestive symptoms: Record bloating, wind, comfort levels, and stool consistency using a simple reference like the Bristol Stool Chart.
Lifestyle factors: Track your nightly sleep quality, daily stress levels, and physical activity.
Energy and Mood: Rate your vitality and mental clarity morning, afternoon, and evening.

Patterns often emerge from a written diary that are difficult to spot day-to-day. You may discover that your stomach feels significantly better on days when you drink two litres of water, or that late-night high-fat meals consistently cause morning heartburn.

Step 3: Consider a Targeted Blood Test as a Health Snapshot

If you have consulted your GP, ruled out acute gastrointestinal pathology, and optimized your dietary habits, but still feel "stuck" or suffer from unexplained fatigue and low vitality, a private blood test can provide a helpful, targeted snapshot.

Blood testing does not diagnose complex digestive diseases on its own, but it offers vital clinical data about your internal environment, showing how well your body is absorbing key nutrients and whether underlying inflammatory or metabolic processes are at play.

Choosing the Right Snapshot Panel

When looking at systemic health alongside digestion, choosing a tiered panel allows you to select the appropriate level of detail:

Broad Health Snapshots (Gold & Platinum Tiers): If you wish to investigate potential nutrient shortfalls stemming from poor digestive absorption, broader health profiles are ideal. Our Gold Health profile includes base thyroid markers (TSH, Free T4, Free T3) alongside essential cofactors and nutrient markers: Ferritin, Folate, Active Vitamin B12, Vitamin D (25-OH), and C-Reactive Protein (CRP) to measure systemic inflammation. The Platinum thyroid profile expands on this further with a full iron panel and metabolic indicators like HbA1c.
Focused Thyroid Profiling (Bronze & Silver Tiers): If your primary symptoms lean towards metabolic slowness, feeling cold, and unexplained weight changes alongside constipation, a focused thyroid panel can be useful. Bronze provides base thyroid hormones plus essential cofactors, while Silver thyroid testing adds key autoimmune thyroid markers (TPOAb and TgAb).

The Blue Horizon Differentiator: Key Cofactors Included

Unlike many standard thyroid or basic blood checks, all Blue Horizon thyroid and comprehensive health panels automatically include two essential extra markers:

Magnesium: A vital mineral required for over 300 enzymatic reactions in the body, including gut muscle contraction, nerve signal transmission, and thyroid hormone conversion.
Cortisol: The body's primary stress hormone. Chronic stress alters cortisol rhythms, directly impacting gut barrier integrity, digestive secretions, and metabolic rate.

Sample Collection Made Simple

We aim to make private pathology practical and straightforward:

Home Fingerprick or Tasso Device: Suitable for Bronze, Silver, and Gold level panels, allowing you to collect a small blood sample conveniently at home.
Professional Venous Blood Draw: Required for our comprehensive Platinum profile, arranged easily via a clinic visit or a nurse home visit.
Sample Timing: We generally recommend collecting your blood sample at 9:00 am. Hormone levels—particularly cortisol and TSH—follow a natural daily circadian rhythm. Testing at 9:00 am ensures reliable consistency and accurate baseline comparisons.

All results are returned promptly with clear reference ranges for you to share directly with your GP or specialist, ensuring your private testing acts as a constructive bridge to better, more informed medical conversations. If you wish to compare available options, browse the thyroid blood test collection.

Conclusion

Understanding what is good gut food is a empowering step towards taking control of your daily health. Your digestive tract is a dynamic living ecosystem that responds remarkably well to consistent, gentle care. By filling your plate with a colourful variety of prebiotic fibres, natural probiotic live cultures, protective polyphenols, and maintaining good hydration, you create the ideal environment for a diverse, resilient gut microbiome.

Remember that lasting health is built through thoughtful, steady habits rather than extreme elimination diets or quick fixes. Listen to your body, treat your digestive system with care, and follow a sensible path forward:

Prioritise whole foods: Focus on oats, apples, legumes, ground seeds, live plain yogurt, kefir, and fermented vegetables.
Consult your GP: Always discuss persistent, worsening, or concerning symptoms with your doctor first to rule out medical conditions.
Track your patterns: Keep a structured food, stress, and symptom diary to identify personal triggers and lifestyle connections.
Investigate when needed: Use targeted blood testing as a structured snapshot to check key nutrients, inflammatory status, and metabolic markers when you need deeper context to guide your healthcare conversations.

If you are ready to explore your baseline health or want to investigate lingering fatigue and nutrient levels alongside your dietary improvements, explore our range of comprehensive thyroid and health testing options today to take your next proactive step with confidence.

FAQ

What is the single best food for gut health?

There is no single "superfood" that can single-handedly transform your gut health. The gut microbiome thrives on diversity, meaning that eating a wide variety of plant foods is far more beneficial than focusing on one specific ingredient. However, if you are looking for powerful everyday staples to start with, unflavoured live kefir (for probiotic live cultures) and whole oats or ground flaxseeds (for soluble prebiotic fibre) are two of the most effective, accessible choices to add to your daily diet.

How quickly can eating gut-friendly foods improve my digestion?

Some people notice small improvements in bowel regularity and reduced stomach discomfort within a few days of increasing fluid intake and adding gentle soluble fibre or fermented foods. However, meaningfully shifting the composition and diversity of your gut microbiome generally takes several weeks of consistent dietary changes. It is normal to experience mild gas or changes in stool frequency during the first week as your gut flora adapts to higher fibre levels; introduce fibre-rich foods gradually to give your system time to adjust comfortably.

Are fermented foods like sauerkraut and kefir suitable for everyone?

For the vast majority of people, incorporating modest amounts of traditionally fermented foods into daily meals is entirely safe and highly beneficial. However, because fermented foods contain high levels of live bacteria and organic compounds like histamines, individuals with severe histamine intolerance, specific gastrointestinal conditions, or severely compromised immune systems should exercise caution. If you are uncertain whether live fermented foods are appropriate for your specific health background, consult your GP or a qualified registered dietitian before making significant changes.

How do I know if my gut issues require a doctor's visit?

While mild, occasional bloating or temporary changes in digestion following a heavy meal are common, persistent or severe symptoms should always be evaluated by a healthcare professional. You should arrange to see your GP if you experience digestive symptoms that last longer than two to three weeks, severe pain, unexplained changes in bowel habits, persistent diarrhoea, blood in your stool, difficulty swallowing, or unexplained weight loss. Your GP can conduct appropriate clinical investigations to rule out underlying gastrointestinal diseases or metabolic imbalances.

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What Is Good Gut Food? A Practical Health Guide