Your gut plays a pivotal role in your digestion, immunity, mood, and overall well‑being. When something feels off—whether it’s chronic bloating, fatigue or sudden food sensitivities—it may be time to consult with a gut health dietitian. Our expert dietitians don’t just recommend probiotics or fibre foods—they provide personalised, evidence‑based plans tailored to your unique physiology and situation, to provide positive health outcomes.
Signs to look out for, that indicate disrupted gut health
Here we will break down the signs and symptoms to look for, which could be a good indication to seeing a specialist gut health dietitian.
Persistent digestive discomfort
If you’re regularly experiencing bloating, excessive gas, constipation, diarrhoea, or heartburn, these are classic indicators of gastrointestinal imbalance or dysfunction.
When these symptoms become chronic or disrupt your daily life—especially if bloating follows most meals or bowel habits have shifted—it’s time to consider professional help. A gut health dietitian can support you through protocols, such as the low‑FODMAP or elimination diets, to identify and manage triggers like IBS, SIBO, or food sensitivities.
Sudden or unexplained weight change or nutrient deficiencies
Unexpected weight loss or gain can stem from poor nutrient absorption, metabolic imbalances, or microbiome dysregulation. Persistent fatigue can also arise from gut challenges, as nutrient deficiencies due to malabsorption take a toll on energy levels.
Certain signs—such as brittle nails, hair loss, muscle cramps, brain fog or cravings—can be symptoms for specific deficiencies, such as iron, B12, magnesium, zinc & vitamin D. We know that these often accompany gut imbalance, as malabsorption of certain nutrients can be caused by disease of the small intestine, as well as the stomach, pancreas and liver.
A gut health dietitian can assess nutrient status, recommend appropriate dietary changes (or supplements where needed), and monitor your response over time.
Skin reactions, persistent bad breath & other inflammatory signals
Skin conditions such as eczema, acne, psoriasis, or persistent rashes often have roots in systemic inflammation and gut microbiome imbalance. Your digestive system and skin health are connected via the immune system and inflammatory pathways—addressing gut health can provide improvements in skin wellness.
Chronic bad breath (halitosis) that doesn’t improve with dental care can also signal possible Heliobacter Pylori (H Pylori) infection, or gastrointestinal reflux, which links to poor digestion or bacterial imbalance in the gut.
If topical treatments or mouthwash aren’t resolving your symptoms, a gut focused dietary assessment may uncover the cause.
Mood disturbances, fatigue & brain fog
Your gut influences your brain via the gut‑brain axis. Imbalances in gut bacteria and inflammation can lead to anxiety, depression, mood swings and brain fog. One review found that 36-63% of people with chronic fatigue also have IBS—a testament to the gut’s role in energy regulation.
Chronic bloating, inconsistent stool form and low energy are strong indicators of gut distress—and that improving fibre intake and dietary variety make vast improvements on the gut and mental health alike.
Our gut health dietitians can support you with strategies to rebalance your microbiome, stabilise blood sugar, and relieve symptoms from the gut upward.
New food sensitivities or intolerances
Developing new food sensitivities (e.g. to gluten, dairy, FODMAP’s) can be a sign of underlying gut lining damage—often described as increased intestinal permeability or “leaky gut”. This term “leaky gut” is not yet medically recognised and is instead viewed as a process or a symptom of an underlying condition.
Symptoms such as brain fog, joint pain, headaches, and bloating may accompany this permeability due to immune activation from food particles travelling through the permeable small intestinal barrier and entering the bloodstream.
IBS, SIBO (small intestinal bacterial overgrowth), and leaky gut can overlap. Specialised dietitians will help you navigate your symptoms, support you with elimination and re‑introduction diets, and advise on gut‑supporting food and supplement choices—without just blindly restricting every food group.
Disrupted bowel habits
Changes in bowel frequency—like going from twice daily to once every two days or alternating between constipation and diarrhoea—can indicate underlying gut imbalance. If you notice symptoms like blood in stool, unexplained weight loss, severe pain and have a family history of gastrointestinal disease, these are red‑flag symptoms, and we would strongly recommend visiting your GP as soon as possible.
A gut health dietitian can help interpret routine results like stool charts or faecal calprotectin tests (when ordered by a GP or gastroenterologist), and add nutrition interventions to support healing.
Antibiotic use or medical treatment that could disrupt your microbiome
Antibiotics, NSAIDs (nonsteroidal anti-inflammatory drugs) and other medications are known to alter gut microbiota, sometimes resulting in dysbiosis or harmful bacterial overgrowth.
Post‑antibiotic gut recovery is an important period where dietary strategies and specific targeted probiotic/probiotic foods—under a dietitian’s guidance—can support rebalancing beneficial bacteria and restore healthy digestion.
Why a gut health dietitian?
Registered dietitians with GI or gut health specialisation will have advanced training or experience in gastrointestinal physiology, gut‑brain signalling, microbiome science, and evidence‑based nutrition strategies.
They offer:
- Targeted elimination strategies (e.g. low‑FODMAP) with safer, faster implementation and reintroduction plans
- Personalised nutrition plans based on your diagnosis, symptom pattern, blood work, dietary history, lifestyle, and goals
- Education, tools for symptom tracking, and support for building long‑term habits—not just quick fixes
What to expect at your first appointment
For the first time you see one of our gut health dietitians, here is what will typically be included:
- Symptom and medical history intake — including details around bowel changes, food triggers, medications, sleep, stress, lifestyle, and energy levels
- Diet assessment — covering diversity, portion sizes, frequency patterns, fibre sources, hydration, meal timing, and food preparation
- Blood results review — Any existing results such as stool tests, nutrient panels, SIBO breath tests), if available, will be discussed and explained
- Customised plan — this may include an elimination phase, protocols to improve gut health, adding in certain types of prebiotic/probiotic foods, exploring different fibres and plant diversity goals (e.g. 30 types of plants/week as per expert guidance).
- Lifestyle and stress‑management coaching — including mindful eating strategies such as chewing slowly, minimising distractions, taking deep breaths before meals, and shifting into a ‘rest‑and‑digest’ state for better digestion.
- Ongoing follow‑ups and accountability— following the first session, a plan is created to allow adjustments to be made based on symptom response, lifestyle changes, and evolving requirements.
When to book that appointment
Consider reaching out to a gut‑health dietitian if you experience:
- Regular bloating (>3 days/week) or disruptive gas that affects your mood or energy
- Persistent or shifting bowel habits (constipation, diarrhoea, alternating stools, or urgency)
- Food intolerances or symptoms appearing after common triggers (dairy, gluten, high‑FODMAP foods)
- Unexpected fatigue or low mood alongside GI symptoms or nutritionally‑based signs
- Recurring skin reactions or bad breath not resolved by local treatments
- Unexplained weight changes or nutrient‑related signs like hair loss, cravings, or brain fog
- A recent course of antibiotics and ongoing GI imbalance
If any of these signs are affecting your quality of life or disrupting your goals, speaking with a qualified gut‑health dietitian is a proactive step to support healing, reduce symptoms, and enhance your overall wellness.
Why seeing a dietitian makes a difference
Using a gut‑health dietitian transforms your journey from trial-and-error into:
- Evidence‑based protocols shaped by the latest research
- Personalisation based on your specific symptoms, blood work, diet history, lifestyle, and health goals
- Care coordination when other providers are involved, such as gastroenterologists
- Long‑term habit building—you learn what nourishes your gut and supports sustainable changes
In an area full of fads and misleading advice, a gut‑health dietitian helps you cut through the noise and build resilience from the inside out.
If you’re experiencing frequent bloating, gas, irregular bowel habits, new food intolerances, unexplained fatigue, skin issues, or sudden weight changes—or you’ve had a course of antibiotics that left ongoing GI discomfort—consider scheduling an appointment with a registered dietitian specialised in gut health.
We can help you:
- Identify root causes (e.g. IBS, SIBO)
- Create a personalised elimination or reintroduction plan
- Develop a gut‑nourishing dietary framework rich in the right types and quantities of fibre, fermented foods, diversity, and hydration
- Adjust lifestyle and eating patterns to support gut and brain connections
- Monitor progress and adapt to make a long term plan
Your gut isn’t just one organ—it influences your metabolism, immunity, skin, mood, and energy. A tailored, expert‑led plan can help you reclaim health from the inside out
