The Gut-Skin Axis

The connection between our gut and our skin

The skin is our largest organ and protective outer barrier. It is a living organ with cells renewing on average every 28 days. For many of us our skin either feels dry or oily and we may experience a pimple or two, but for the most part we are fine. But for those who suffer from acne, eczema, rosacea or psoriasis, the condition of our skin can be distressing, painful, impact our self-confidence and may reduce our quality of life. For these chronic conditions, topical products can only go so far. The root cause is often something deeper than what is happening in our epidermis and as a Naturopath – this is where I come in.

There is increasing research that shows the link between our gut microbiome and skin conditions. The gut and skin are closely connected through the immune system, our hormones, nervous system and the trillions of microorganisms that live in our digestive tract. The gut-skin-axis refers to the communication messaging between these pathways. When this communication gets disrupted, it can have an impact on our skin presentation.

How? Lets find out!

Intestinal Permeability (leaky gut)

If we have inflammation in our gut from food intolerances, high stress or high alcohol consumption, over time this can compromise the lining of our mucosa, leading to looser tight junctions along our intestinal wall. These gaps in the junctions allow undigested food particles and toxins to escape into the bloodstream. These foreign particles influence immune system signalling and can trigger systemic inflammation which manifests outwardly on our skin. This is particularly difficult for those suffering from eczema, as flare ups are closely linked to immune activity.

Dysbiosis & poor elimination pathways

If we are not consuming enough fibre nor a diverse range of food groups, we can end up with an imbalance of opportunistic bacteria in our gut. High sugar, highly processed, low fibre foods mean these bacteria over colonise and our beneficial bacteria suffer. Dysbiosis can also impact our elimination pathways, causing sluggish bowel motions. This buildup of metabolic waste, forces our skin—one of the body's primary elimination organs—to excrete these toxins through out pores, manifesting in a dull or puffy complexation with a higher likelihood of congestion.

Nutritional intake

The skin relies on key nutrients such as omega’s, zinc and vitamin A to function. This means, we need adequate dietary intake of healthy fats, protein and vegetables to ensure skin integrity, elasticity and wound repair. Restrictive diets, low fruit and vegetables intake and high intake of alcohol, saturated fats and high glycaemic foods will all impact our skin’s ability to manage chronic conditions such as acne, eczema and psoriasis. In addition, poor nutrient absorption due to inflammation in the gut can prevent the nutrients from our diet actually reaching our skin cells.

Stress and hormones

Surges and sharp drops of hormones like estrogen and progesterone in the lead up to our period can cause dry skin and increase oil production, creating an environment for congestion and irritation. Similarly, stress stimulates the release of cortisol, which can increase sebaceous gland activity leading to more oil which can trap bacteria and create an environment for replication. This manifest in inflammation and acne. Stress also signals the release of inflammatory cytokines, which release histamine causing redness and itching seen in eczema, psoriasis and rosacea.

A holistic approach

From a naturopathic perspective, when it comes to chronic skin conditions, we need to look at the whole picture rather than focusing exclusively on the presenting symptoms on our skin. Your skin can be influenced by many factors, and there is no single explanation for conditions such as eczema or acne. Looking at the gut–skin connection simply adds another piece to the puzzle and helps us understand the pathophysiology drivng your symptoms. Digestive issues, dietary patterns, stress, sleep and lifestyle can all provide useful context as to the root cause of your skin concerns.

If you are suffering from chronic skin conditions and want support alongside your topical products, book a consultation today.