I have always viewed the skin as the largest metabolic organ of the body. Just as our organs age, the metabolic health of these organs changes. In general, skin is the largest representation of our internal health, and for those who don’t know this, the skin is the largest organ of the body. We don’t often think of our skin being connected to our other organs, but it is deeply linked to the gut microbiome.
Skin health has always fascinated me. Having had my own skin issues as a young kid, I was always very curious to see other girls who didn’t have skin issues. Some girls would only have breakouts around their menstrual cycles and some not even that. It was years later that I fully appreciated that the root cause of my skin issues was my gut health. As much as Nutritionists love talking about gut health, the skin-gut axis is often discussed more in terms of children having eczema. This year, a client who was four months postpartum came to me with rosacea, and it was her gut health that we worked on intensely. Her recovery from rosacea even surprised me. Her skin went from red and inflamed to calm and balanced, with only minute spots of redness remaining.
When it comes to gut health, I am always closely looking at two very distinct things: inflammation caused by dysbiosis and inflammatory markers, and digestive insufficiencies. The skin needs nutrients such as vitamin A, C, Zinc, E, glutamine, collagen, and protein for its elasticity. I also consider external factors like red light from sunlight and environmental exposure. If you have ever had dry, flaky skin in the winter and then oily skin in the summer, that is your skin reacting to your environment. In truth, a well-functioning gut helps maintain harmony in the body, preventing the skin from overreacting to external stressors.
When the gut barrier is compromised, it creates a condition known as leaky gut syndrome. Toxins, undigested food particles, and inflammatory molecules escape into the bloodstream, triggering widespread inflammation. Over time, this internal inflammation manifests externally as acne, eczema, rosacea, and even premature aging. A healthy gut lining acts as a filter, allowing nutrients to pass through while keeping harmful substances out. However, when the integrity of the gut is weakened due to poor diet, stress, medications, or infections- these tight junctions in the intestinal wall loosen. This allows unwanted particles to enter the bloodstream, causing the immune system to go on high alert. The body sees these foreign invaders as threats and responds with inflammation. While this inflammatory response is initially protective, chronic exposure overwhelms the body, leading to persistent skin issues and accelerating the aging process. Inflammatory cytokines, histamines, and endotoxins circulate through the bloodstream, fuelling skin redness, breakouts, and irritation. Undigested food particles, especially protein putrefaction can lead to skin disorders as well, which is why it is very important that our body digest our nutrients well.
Traditional dermatology often focuses on treating symptoms rather than addressing the underlying causes. Acne, for example, is commonly linked to clogged pores and excess sebum production, but research increasingly shows that gut dysbiosis and systemic inflammation play a significant role. Similarly, eczema and psoriasis, often thought of as autoimmune-driven conditions, frequently have roots in poor gut health and a compromised immune response. Even premature aging is influenced by gut-derived inflammation, as oxidative stress and glycation break down collagen and elastin, leading to sagging skin and wrinkles.
If you are interested in learning more about skin health, I will be doing an Instagram live at 11am Central US time. I will be speaking to Dr. Valerie Gersherhorn who is a board certified Dermatologist and specialises in skin health. This Instagram live will be all about mitigating aging skin and the nutrients and foods we can provide our skin to enable a glowing radiant inside and outside.