Introduction
It is a familiar scenario for many people across the UK: you finish a balanced lunch, only to spend the rest of the afternoon feeling uncomfortably bloated, lethargic, or plagued by an unsettled stomach. Perhaps you have noticed a steady decline in your energy levels, unexplainable brain fog, or subtle skin flare-ups that seem to track alongside your digestion. When your digestive tract feels off, it can cast a shadow over your entire day, leaving you searching for practical, lasting answers.
The human digestive system is far more than a simple food processing tube. It houses a complex ecosystem of trillions of micro-organisms, collectively known as the gut microbiome, alongside a protective intestinal lining that acts as the body's primary gateway. When this delicate environment becomes imbalanced due to stress, recent antibiotic courses, or a modern diet high in ultra-processed foods, digestion can suffer. For a broader explanation, read this guide to what the gut microbiome is and why it matters.
This article explores what foods heal your gut, examining how dietary choices, specific nutrient groups, and gentle lifestyle modifications can support the repair of your digestive tract and foster a resilient microbiome. We will break down the roles of fermented foods, prebiotic fibres, amino acids, and polyphenols in plain English, helping you make informed, calm decisions about your daily meals.
At Blue Horizon Blood Tests, we believe that restoring digestive well-being requires seeing the bigger health picture rather than looking for a single quick fix. That is why we recommend a structured, phased approach—what we call the Blue Horizon Method. Before undertaking significant dietary overhauls or private health checks, your first step should always be a consultation with your NHS GP to rule out underlying clinical conditions. From there, tracking your daily symptoms and lifestyle factors can provide invaluable context. Should you require further clarity, a targeted blood test can offer a detailed snapshot of your systemic health to share with your healthcare provider.
Safety Note: If you experience sudden, severe abdominal pain, persistent vomiting, unexplained rapid weight loss, chronic diarrhoea, or blood in your stool, these are red flag symptoms that warrant urgent medical evaluation. Please contact your GP, call NHS 111, or visit your nearest A&E department promptly.
Understanding the Gut Microbiome and Intestinal Barrier
To understand how food supports digestive health, it helps to examine the two foundational components of your gut ecosystem: the intestinal lining and the gut microbiome.
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| THE GUT ECOSYSTEM |
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| |
v v
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| Intestinal Lining| | Gut Microbiome |
| (Physical Barrier| | (Living Microbes |
| & Mucosal Wall) | | & SCFA Production|
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| |
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|
v
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| Nutrient Absorption |
| Immune Regulation |
| Systemic Balance |
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The Physical Barrier
The wall of your small and large intestines is lined with a single layer of specialized epithelial cells. Held together by tight junction proteins, this layer forms a selective barrier. It allows water and essential nutrients from your digested food to enter the bloodstream while keeping out harmful bacteria, undigested food particles, and toxins. Surrounding this cellular wall is a protective layer of mucus, rich in antibodies and protective proteins.
When this mucosal barrier is healthy, nutrients are absorbed efficiently, and the underlying immune system remains calm. However, poor nutrition, elevated stress, or chronic inflammation can weaken these tight junctions, leading to what clinicians term increased intestinal permeability.
The Microbiome Ecosystem
Living within your gut—predominantly in the large intestine—are trillions of bacteria, fungi, and other micro-organisms. A diverse microbiome performs critical tasks that the human body cannot accomplish alone:
- Fibre Digestion: Microbes break down complex plant fibres that human enzymes cannot digest.
- SCFA Production: As bacteria ferment these fibres, they produce short-chain fatty acids (SCFAs) such as butyrate, acetate, and propionate. Butyrate serves as the primary fuel source for the cells lining your colon, directly supporting structural repair and reducing local inflammation.
- Immune System Support: Roughly 70% of the body's immune cells reside in the gut-associated lymphoid tissue (GALT). Beneficial microbes constantly communicate with these immune cells, training them to distinguish between harmless nutrients and potential pathogens.
- Vitamin Synthesis: Gut flora naturally synthesize essential nutrients, including Vitamin K2 and various B vitamins.
When the balance between beneficial and opportunistic bacteria is disrupted—a state known as dysbiosis—you may experience localized symptoms like gas, bloating, and irregular bowel habits, alongside systemic effects such as fatigue and low-grade inflammation. You can learn more about how the gut microbiome affects overall health.
Key Categories: What Foods Heal Your Gut
Restoring gut integrity is not about following restrictive trends; it is about supplying your body with the biological building blocks required to rebuild mucosal tissue and feed beneficial microbial strains. Incorporating a broad array of whole foods provides the necessary variety to support a diverse gut ecosystem.
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| GUT-HEALING FOOD CATEGORIES |
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| Fermented Foods | Prebiotic Fibre| Barrier Support | Polyphenols|
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| Kefir | Garlic & Onion | Bone Broth | Berries |
| Live Yoghurt | Leeks & Oats | Oily Fish | Green Tea |
| Sauerkraut/Kimchi| Apples (Pectin)| Flax & Chia | Olive Oil |
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1. Fermented Foods Rich in Live Cultures
Fermented foods are produced through controlled microbial growth, where yeasts and bacteria break down carbohydrates into organic acids. Consuming these foods introduces live, beneficial micro-organisms directly into your digestive tract, helping to temporarily boost microbial diversity and create an environment where native good bacteria can thrive.
- Unsweetened Live Yoghurt: Packed with strains such as Lactobacillus and Bifidobacterium, live yoghurt is an accessible option for gut support. Look for plain, unflavoured varieties with "live active cultures" on the label to avoid added sugars that can disrupt gut balance.
- Kefir: A traditional fermented milk drink made using kefir grains, this beverage contains a wider variety of probiotic bacteria and yeasts than standard yoghurt. The fermentation process breaks down much of the lactose, making it gentler on digestion for many individuals. Non-dairy alternatives made from coconut water or water kefir are also widely available.
- Raw Sauerkraut and Kimchi: Made from fermented cabbage and vegetables, these traditional foods deliver live bacteria alongside dietary fibre and antioxidants. Always select raw, unpasteurised versions found in the refrigerated section of your local grocer, as heat pasteurisation destroys beneficial live cultures.
- Traditional Miso and Tempeh: Derived from fermented soybeans, miso paste adds rich umami flavour to broths and dressings while introducing protective micro-organisms. Tempeh provides a plant-based protein source rich in fibre and fermented nutrients.
- Kombucha: A lightly effervescent tea fermented with a symbiotic culture of bacteria and yeast (SCOBY). Enjoying a small glass of low-sugar kombucha can be a refreshing way to introduce organic acids into your diet.
2. Prebiotic Foods to Fuel Beneficial Bacteria
While live fermented foods introduce good bacteria, prebiotic foods provide the non-digestible fibre that feeds the beneficial microbes already resident in your colon. Without adequate prebiotic fibre, introduced probiotics struggle to establish themselves.
- Alliums (Garlic, Onions, Leeks, and Shallots): These vegetables are rich in inulin and fructooligosaccharides (FOS), soluble fibres that act as primary fuel for beneficial Bifidobacteria. To maximize their prebiotic value, incorporate them lightly cooked or raw where tolerated.
- Oats: Containing high amounts of beta-glucan, a soluble fibre that forms a gel-like substance in the digestive tract, oats help soothe the gut lining, support regular bowel movements, and foster a healthy balance of intestinal micro-organisms.
- Apples (Eaten with the Skin On): Apples are abundant in pectin, a soluble prebiotic fibre that undergoes fermentation in the colon to produce butyrate. Leaving the skin on ensures you obtain both the fibre and protective surface antioxidants.
- Asparagus and Artichokes: Globe and Jerusalem artichokes are concentrated sources of inulin. Including cooked asparagus spears in your weekly meals offers gentle, gut-nourishing fibre.
- Slightly Green Bananas: As bananas ripen, their starches convert to simple sugars. Unripe or slightly green bananas are rich in resistant starch, which travels through the small intestine intact to feed friendly bacteria in the large bowel.
- Legumes (Lentils, Chickpeas, and Beans): Legumes provide a combination of soluble fibre, insoluble fibre, and resistant starch. If you are unaccustomed to high fibre intake, start with small servings of well-cooked red lentils or rinsed canned chickpeas to allow your digestive system time to adapt.
3. Barrier-Supporting Foods and Essential Amino Acids
Repairing the structural lining of the gut requires specific building blocks, particularly amino acids like L-glutamine, alongside healthy fats that help calm inflammation within the mucosal tissue.
- Bone Broth: Simmering animal bones slowly releases gelatin, collagen, and amino acids such as proline, glycine, and glutamine. Gelatin helps retain water in the digestive tract, supporting smooth passage, while glutamine acts as a primary fuel source for intestinal mucosal cells.
- Oily Fish (Mackerel, Salmon, Sardines, and Herring): Rich in long-chain omega-3 fatty acids (EPA and DHA), oily fish help regulate inflammatory pathways within the gut wall. Sustained low-grade inflammation can compromise mucosal integrity; omega-3s support a calmer intestinal environment.
- Chia Seeds and Flaxseeds: These seeds are packed with soluble mucilage fibre, which absorbs water to create a soothing coating along the digestive tract. They also provide plant-based alpha-linolenic acid (ALA), an omega-3 fatty acid.
- Eggs and Lean Poultry: Excellent sources of bioavailable amino acids, including glutamine and cysteine, which support ongoing tissue repair throughout the gastrointestinal tract.
4. Polyphenol-Rich Foods and Antioxidants
Polyphenols are natural micronutrients found in vibrant plant foods. The majority of swallowed polyphenols pass unabsorbed into the colon, where gut microbes break them down into active, anti-inflammatory compounds. In turn, polyphenols selectively encourage the growth of beneficial species like Akkermansia muciniphila, which plays a role in maintaining the protective mucus layer.
- Dark Berries (Blueberries, Blackberries, and Raspberries): High in anthocyanins, berries offer potent antioxidant protection that helps shield epithelial cells from oxidative stress.
- Extra Virgin Olive Oil: A staple of healthy dietary patterns, high-quality extra virgin olive oil contains polyphenols such as oleocanthal, which helps maintain a healthy inflammatory balance in the gut wall.
- Green Tea: Rich in epigallocatechin gallate (EGCG), green tea supports beneficial microbial strains while modulating intestinal inflammation.
- Herbs and Spices: Ginger contains gingerols, which stimulate digestive enzymes and reduce feelings of nausea or bloating. Turmeric (containing curcumin) and oregano provide strong anti-inflammatory and microbial balancing properties.
What to Limit While Restoring Digestive Balance
Supporting gut healing is as much about removing ongoing irritants as it is about adding nourishing foods. When your intestinal barrier is sensitive, certain dietary elements can disrupt microbial diversity, weaken tight junctions, or cause localized discomfort.
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| FOODS TO LIMIT OR REDUCE |
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| Category | Primary Impact | Gut Mechanism |
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| Ultra-Processed Foods | Reduces diversity | Emulsifiers irritate |
| | | mucosal barrier |
| Refined Sugars | Feeds opportunistic| Disrupts microbial |
| | microbes | balance (dysbiosis) |
| Excessive Alcohol | Damages lining | Direct toxicity to |
| | | tight junctions |
| Saturated & Trans Fats| Fuels inflammation| Elevates inflammatory |
| | | signalling |
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Ultra-Processed Foods and Emulsifiers
Factory-processed meals often contain synthetic emulsifiers (such as carboxymethylcellulose and polysorbate 80), artificial preservatives, and altered fats. Research indicates that certain emulsifiers can degrade the protective mucus layer of the gut, bringing bacteria into direct contact with epithelial cells and triggering low-grade inflammation.
Refined Sugars and Artificial Sweeteners
A diet high in refined table sugar and high-fructose corn syrup can feed fast-growing, opportunistic bacteria and yeasts, outcompeting beneficial strains. Conversely, high amounts of artificial sweeteners (such as polyols or synthetic non-caloric options) can alter microbial fermentation pathways, leading to gas, bloating, and looser stools in sensitive individuals.
Excessive Alcohol
Alcohol acts as a direct irritant to the gastrointestinal mucosa. Heavy or binge drinking impairs the function of tight junction proteins, increasing intestinal permeability and allowing bacterial endotoxins to enter the circulation. Moderating your alcohol intake gives the delicate gut lining time to regenerate.
Deep-Fried and Saturated Fat-Heavy Meals
While healthy fats are vital, high intakes of greasy, deep-fried foods can slow down stomach emptying and promote the growth of bile-tolerant, pro-inflammatory bacteria. Opting for gentle cooking methods—such as steaming, poaching, baking, or light pan-frying in olive oil—reduces stress on your digestive system.
The Broader Picture: How Gut Health Intersects with Whole-Body Biomarkers
When addressing persistent digestive complaints, it is important to remember that your gut does not operate in isolation. Dysbiosis or impaired mucosal function can directly affect nutrient absorption and systemic hormone regulation. Conversely, non-digestive medical conditions can manifest primarily as digestive issues.
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| SYSTEMIC INTERACTIONS WITH GUT HEALTH |
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| System / Marker | Intersecting Mechanism with Gut Function |
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| Thyroid Function | Low thyroid hormone slows gut motility, |
| (TSH, Free T4, T3) | leading to constipation and overgrowth. |
| Iron Stores | Impaired gut lining reduces iron |
| (Ferritin) | absorption, driving fatigue. |
| Vitamin B12 & Folate | Requires healthy stomach acid and intrinsic|
| | factor for proper mucosal absorption. |
| Inflammatory Status | Elevated CRP indicates systemic stress, |
| (C-Reactive Protein) | reflecting unresolved tissue irritation. |
| Stress Axis | High cortisol alters blood flow and mucus |
| (Cortisol) | production in the intestinal tract. |
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Micronutrient Absorption (Ferritin, Vitamin B12, Vitamin D)
If your digestive lining is irritated or inflamed, your ability to absorb essential micronutrients from food may decline:
- Ferritin (Iron Stores): Iron absorption occurs primarily in the duodenum. Chronic gut irritation can impair this process, leading to low ferritin levels and persistent fatigue, even if your diet contains sufficient iron.
- Vitamin B12 and Folate: B12 absorption requires adequate stomach acid and intrinsic factor produced by the gastric lining. Poor digestive secretion or mucosal inflammation can compromise B12 status, contributing to brain fog and weakness.
- Vitamin D: As a fat-soluble nutrient, Vitamin D relies on healthy bile flow and proper fat digestion for absorption. Vitamin D is also vital for regulating mucosal immunity and keeping tight junction proteins intact.
The Thyroid-Gut Axis
Thyroid hormones play a critical role in controlling metabolic rate and digestive motility (peristalsis).
- Sluggish Motility: An underactive thyroid (hypothyroidism) slows down the physical movement of food through the digestive tract. This delayed transit time can cause chronic constipation, abdominal heaviness, and create an environment where excess bacteria can flourish in the small bowel.
- Microbiome Impact: Your gut bacteria assist in converting inactive thyroid hormone (T4) into its active form (T3). Therefore, a disrupted microbiome can negatively influence thyroid hormone conversion, creating a cycle of fatigue and sluggish digestion.
If your standard GP blood tests have shown a "normal" Thyroid Stimulating Hormone (TSH) result, but you continue to experience sluggish digestion, cold sensitivity, and deep fatigue, a broader thyroid blood testing profile—looking at Free T4, Free T3, and thyroid autoantibodies alongside key cofactors—may provide valuable clinical context.
Systemic Inflammation and Stress (CRP and Cortisol)
C-Reactive Protein (CRP) is a standard marker used to measure systemic inflammation. Elevated CRP can reflect ongoing inflammatory processes in the body, including the digestive tract.
Simultaneously, the adrenal hormone cortisol plays a profound role in the gut-brain axis. Under chronic stress, elevated or erratic cortisol levels reduce blood flow to the digestive organs, decrease stomach acid secretion, and alter the mucus barrier, making the gut lining more vulnerable to irritation.
The Blue Horizon Method: A Phased Approach to Gut Restoration
At Blue Horizon, we advocate for a practical, step-by-step journey to address persistent health concerns safely and responsibly. Testing is never a substitute for a comprehensive clinical consultation, nor should dietary changes be made impulsively.
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| THE BLUE HORIZON METHOD |
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| STEP 1: Clinical Rule-Outs with Your NHS GP |
| Consult your doctor to evaluate red flags and primary conditions. |
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| STEP 2: Structured Self-Tracking & Dietary Foundations |
| Log symptoms, food intake, sleep, and stress; adopt gut foods. |
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| STEP 3: Targeted Blood Testing Snapshot (If Still Stuck) |
| Obtain a clear baseline of key biomarkers to share with your GP. |
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Step 1: Consult Your GP
Your first step should always be an appointment with your NHS GP. It is vital to rule out formal gastrointestinal conditions that require direct medical management—such as Inflammatory Bowel Disease (Crohn's disease or Ulcerative Colitis), coeliac disease, peptic ulcer disease, or bowel infections. Your doctor can perform initial screening tests, review any medications you take that might affect digestion (such as NSAID pain relievers or proton pump inhibitors), and ensure you receive appropriate care.
Step 2: Structured Self-Check and Lifestyle Tracking
Before making drastic changes, spend two to three weeks keeping a daily record. Documenting your daily habits helps untangle complex symptoms and provides objective data for future medical discussions:
- Symptom Timing: Note when bloating, pain, or changes in bowel habits occur relative to your meals.
- Food and Fluid Intake: Track your daily intake of fibre, water, fermented foods, and processed snacks.
- Lifestyle Factors: Record sleep duration, daily stress levels, and physical activity. Stress alone can significantly alter bowel motility regardless of diet.
During this phase, begin introducing gut-nourishing foods gradually—such as a daily serving of live yoghurt, a spoonful of sauerkraut, or an extra portion of leafy greens—while ensuring adequate hydration.
Step 3: Consider a Structured Blood Testing Snapshot
If you have consulted your GP, ruled out acute disease, and introduced supportive lifestyle habits but still feel "stuck" with persistent fatigue, sluggishness, or digestive discomfort, obtaining a comprehensive blood snapshot can help pinpoint hidden systemic factors.
Rather than looking at an isolated marker, reviewing a broader panel of health indicators offers a clearer picture of your baseline wellness:
Focused Biomarker Panels
For individuals seeking an accessible baseline overview of key nutrient reserves and systemic markers, our Bronze and Silver Thyroid panels provide base thyroid indicators (TSH, Free T4, Free T3) combined with essential cofactors. You can compare the available options in the thyroid blood tests collection:
- Magnesium: A vital mineral that supports muscle relaxation in the gut wall, energy production, and nerve signalling.
- Cortisol: The primary stress hormone that directly influences gut mucosal integrity and blood flow.
Note: The inclusion of magnesium and cortisol alongside core thyroid markers is a unique feature of Blue Horizon profiles, designed to help evaluate how stress and mineral balance interact with metabolic health.
Broader Health Snapshots
If you wish to explore nutrient absorption and inflammatory status more deeply alongside thyroid function:
- Gold Thyroid Profile: Builds upon base thyroid markers, magnesium, cortisol, and autoantibodies by adding Ferritin, Folate, Active Vitamin B12, C-Reactive Protein (CRP), and Vitamin D (25-OH). This provides a comprehensive view of nutritional status and systemic inflammatory balance, helping you assess whether your digestive system is effectively absorbing key vitamins.
- Platinum Thyroid Profile: Our most comprehensive metabolic snapshot. It includes everything in Gold, plus Reverse T3, HbA1c (blood sugar control), and a complete iron panel (Iron, Transferrin Saturation, TIBC, UIBC). This advanced panel requires a professional venous blood draw. You can review the Thyroid Premium Platinum profile for its full marker list and collection requirements.
Practical Sample Collection Options
To suit your individual preferences and ensure high clinical standards:
- Bronze, Silver, and Gold Profiles: Can be collected conveniently at home via a capillary fingerprick sample, using a home Tasso device, or arranged through a local clinic visit or nurse home visit.
- Platinum Profile: Requires a venous blood sample drawn by a healthcare professional, arranged via a partner clinic or a home nurse visit.
Testing Recommendation: For all thyroid and hormone-related panels, we advise collecting your blood sample at 9:00 am. Hormone levels fluctuate naturally throughout the day, and a standard morning sample ensures consistency, making your results easier for your GP to interpret.
All Blue Horizon blood tests provide structured results designed to be shared with your GP or specialist. Private blood testing does not provide a self-diagnosis; rather, it equips you and your doctor with clear data to guide a more productive clinical conversation.
Practical Daily Routines for Long-Term Gut Resilience
Restoring your digestive system is a long-term process that relies on consistent, sustainable daily habits rather than temporary fixes. Here are practical ways to integrate gut-supporting strategies into your routine. For more ideas, explore this guide to improving gut microbiome health through diet and lifestyle.
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| DAILY GUT-RESILIENCE ROUTINE |
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| Time of Day | Actionable Habit |
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| Morning (9:00 am) | - Hydrate with warm water or herbal tea. |
| | - Enjoy porridge topped with chia seeds, |
| | berries, and a spoonful of live yoghurt. |
| | - Ideal window for baseline blood samples. |
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| Midday | - Sit down, eat slowly, and chew thoroughly.|
| | - Include dark leafy greens, olive oil, and |
| | a portion of lean protein or legumes. |
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| Afternoon / Evening | - Take a 10-minute walk post-meal to aid |
| | gastric emptying. |
| | - Practice stress management (breathwork). |
| | - Wind down early to support sleep repair. |
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Chew Food Thoroughly and Slow Down
Digestion begins in the mouth. Chewing breaks food down mechanically and mixes it with salivary amylase, an enzyme that initiates carbohydrate breakdown. Eating quickly or while distracted causes larger food particles to enter the stomach, placing an extra burden on gastric acid and digestive enzymes, which can lead to post-meal gas and bloating.
Prioritise Hydration
Water is essential for maintaining the mucosal lining of the stomach and intestines. Soluble fibre relies on water to form a gel-like consistency in the colon, allowing waste to pass smoothly. Aim to drink plain water or herbal teas (such as ginger, peppermint, or chamomile) throughout the day, spacing intake between meals to avoid diluting stomach acid during dining.
Manage Chronic Stress and Protect Sleep
Because the brain and gut communicate constantly via the vagus nerve, elevated stress directly alters gut motility and increases mucosal sensitivity. Incorporating 10 minutes of daily deep breathing exercises, mindfulness, or gentle walking can help shift your nervous system into a "rest and digest" state before meals. Prioritising 7 to 8 hours of restorative sleep each night gives the intestinal epithelium time to repair and regenerate.
Diverse Meal Planning
Aim to consume a wide variety of plant foods each week—spanning fruits, vegetables, nuts, seeds, legumes, and whole grains. Research shows that individuals who consume 30 or more distinct plant foods weekly maintain a significantly more diverse and resilient gut microbiome than those consuming fewer than 10.
Conclusion
Understanding what foods heal your gut is an empowering step toward long-term wellness. By filling your plate with probiotic-rich fermented foods, prebiotic plant fibres, barrier-supporting amino acids, and polyphenol-dense berries and herbs, you provide your digestive ecosystem with the exact resources it needs to thrive.
However, dietary healing takes time, consistency, and a calm, thoughtful approach:
- Start with your GP: Always consult your doctor first to investigate persistent symptoms and rule out underlying gastrointestinal or metabolic conditions.
- Track your habits: Use a food and symptom diary to uncover daily patterns and make gradual, well-tolerated dietary adjustments.
- Explore the bigger picture: If digestion remains troublesome or is accompanied by deep fatigue, consider a broader health check. Examining key biomarkers—such as thyroid hormones, ferritin, B12, Vitamin D, CRP, magnesium, and cortisol—can provide a valuable baseline snapshot.
If you are ready to explore your baseline health markers with professional guidance, you can compare the available options in the thyroid blood tests collection. Equipping yourself with clear data helps you and your healthcare professional make safer, more informed decisions for your long-term health.
FAQ
How long does it take for gut-healing foods to make a difference?
Initial changes in your gut microbiome can occur within a few days of introducing prebiotic fibres and fermented foods. However, physical repair of the mucosal lining and noticeable improvements in chronic symptoms like bloating or erratic bowel habits typically take several weeks to a few months of consistent dietary and lifestyle changes.
Can foods alone repair the gut lining after taking antibiotics?
While high-fibre plant foods, fermented products, and amino-acid-rich foods like bone broth provide the necessary nutrients for gut recovery, food is one part of a broader picture. Factors such as chronic stress, sleep quality, and underlying medical conditions also influence how quickly the intestinal barrier recovers following antibiotic therapy.
What is the difference between prebiotic and probiotic foods?
Probiotic foods (such as live yoghurt, kefir, sauerkraut, and kimchi) contain live, beneficial micro-organisms that introduce friendly bacteria to your digestive system. Prebiotic foods (such as garlic, onions, oats, apples, and asparagus) contain non-digestible plant fibres that feed and nourish the beneficial bacteria already living in your colon.
Should I consult my GP before drastically changing my diet?
Yes, it is always wise to discuss significant dietary shifts with your GP or a qualified dietitian, particularly if you have pre-existing health conditions, take regular prescription medications, or suffer from severe digestive symptoms. Your doctor can ensure that underlying medical issues are evaluated before you alter your food intake.
