When it comes to skin health, what we see on the outside often reflects what is happening on the inside. One of the most important yet often overlooked links is the gut–skin connection.
How the Gut Affects the Skin
Your gut is home to trillions of bacteria, fungi and other microbes that make up the gut microbiome. This ecosystem influences digestion, nutrient absorption, immunity and hormone balance, all of which play a role in skin health.
When the gut is imbalanced (dysbiosis) or the gut lining becomes leaky, it can trigger inflammation that shows up in the skin. Common issues include:
Acne linked with imbalances in gut bacteria and insulin resistance
Rosacea associated with small intestinal bacterial overgrowth (SIBO)
Eczema and psoriasis influenced by inflammation and immune system activation
Dullness or pigmentation connected to poor nutrient absorption and liver detox pathways
Signs Your Gut May Be Driving Skin Problems
Bloating, constipation or diarrhoea
Food sensitivities or intolerances
Fatigue, brain fog or mood changes
Skin flares that worsen with stress, diet or around your menstrual cycle
Healing the Gut–Skin Axis
Addressing gut health is one of the most powerful ways to transform your skin from within. This includes:
Eating a diverse, microbiome-friendly diet rich in fibre, vegetables and healthy fats
Reducing processed foods and refined sugars
Supporting digestion with enzymes and probiotics (where appropriate)
Managing stress and improving sleep
Using targeted supplements and treatments guided by testing
My Approach
In my clinic, I don’t just treat symptoms on the surface. I offer functional testing such as stool analysis (GI-MAP, Metabolomix or MetaXplore GI+) to identify gut imbalances. With a full functional dermatology consultation, I combine results with your medical and lifestyle history to create a personalised plan.
By addressing both internal gut health and external skin care, we can achieve clearer, healthier, and more radiant skin naturally and sustainably.
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