The Link Between Eczema and Gut Health

Eczema, or atopic dermatitis, is commonly seen as a skin-deep issue—characterised by dry, itchy, inflamed patches—but growing evidence shows that its roots may extend far beyond the surface. One of the most significant yet often overlooked contributors is gut health. Many people living with eczema also experience digestive disturbances, hinting at a deeper, internal connection.

The Gut-Skin Axis Explained

The gut and skin are closely connected through what is known as the gut-skin axis. This system links the digestive tract to skin health via the immune system, hormonal signals, and microbial balance. When the gut microbiome—the collection of bacteria and other microorganisms in the intestines—is disrupted, it can lead to widespread inflammation that shows up on the skin.

Key mechanisms behind this connection:

• Leaky gut: When the intestinal lining becomes permeable, it allows toxins and undigested food particles to enter the bloodstream, triggering immune responses that may manifest as eczema.
• Inflammation: Chronic inflammation originating in the gut can surface through flare-ups on the skin.
• Immune dysfunction: Since a large portion of the immune system resides in the gut, its balance is critical to preventing skin overreactions.

Signs Gut Health May Be Impacting Eczema

If eczema treatments aren’t working or symptoms keep recurring, the gut might be playing a silent role. Clues include:

• Digestive issues like bloating, constipation, or irregular bowel movements
• Frequent food sensitivities or intolerances
• History of antibiotic overuse or poor diet
• Eczema that flares after eating certain foods

These symptoms often accompany eczema, and when left unaddressed, they can prevent full recovery.

Improving Gut Health to Support Skin

Restoring gut balance can significantly reduce eczema flare-ups. While results take time, dietary and lifestyle changes can gradually strengthen the digestive system and reduce skin inflammation.

What to eat more of:

• Fibre-rich foods: Vegetables, fruits, whole grains, and legumes help nourish beneficial gut bacteria.
• Fermented foods: Homemade curd, buttermilk, idli, and dosa offer natural probiotics that support digestion.
• Healthy fats: Ghee, flaxseed, and coconut oil help reduce internal inflammation.

What to reduce or avoid:

• Excess sugar and processed foods, which promote bad bacteria
• Dairy or gluten (if sensitive), which may aggravate both gut and skin symptoms
• Overuse of antibiotics or antacids, which disrupt gut flora

Other supportive habits:

• Drinking enough water daily to support digestion and toxin removal
• Managing stress through breathing exercises or moderate physical activity
• Getting quality sleep, which allows the gut and skin to repair overnight

A Deeper Layer to Healing

Traditional systems of medicine have long observed the link between digestion and skin disorders. In this context, skin flare-ups are often seen as signs of internal imbalance, particularly poor digestion and toxin build-up. Herbs and formulations that support gut cleansing and improve digestion, such as triphala or neem, have been used to help manage eczema naturally.

Eczema may start on the skin, but its triggers often begin in the gut. Digestive health plays a crucial role in regulating inflammation, immune response, and nutrient absorption—all of which directly affect skin clarity and resilience. By addressing gut health through a balanced diet, supportive lifestyle habits, and traditional insights where appropriate, many people find long-term improvement in their eczema symptoms.