How To Heal Your Skin from Within (Part 1): The Gut-Skin Connection
- Mary Kate Fuller, MS, CNS, LDN, CHHP
- Mar 22, 2021
- 3 min read
Updated: 3 days ago
Your skin is more than just a reflection of your appearance—it's a window into your internal health. When chronic skin conditions like eczema, acne, or rosacea show up, they’re often your body’s way of asking for deeper healing. And that healing starts in the gut.
At Purely Rooted Nutrition & Wellness, we practice functional nutrition—using food and targeted lifestyle support to uncover the root causes behind symptoms. The gut-skin connection is one of the most powerful examples of how this approach can change lives.
Why the Skin Reflects Internal Imbalances
Your skin is your largest organ—and it does far more than affect how we look. It plays a vital role in immune function, detoxification, and protecting you from environmental stressors. Here are just a few of its powerful responsibilities:
Eliminates toxins through sweat and sebum
Shields you from pathogens, UV rays, and extreme temperatures
Absorbs sunlight for vitamin D synthesis
Acts as a sensory organ, alerting you to pain, pressure, and temperature
Helps maintain hydration and fluid balance
When the skin starts showing signs of inflammation, dryness, breakouts, or discoloration, it often means something deeper is going on—especially in the gut.
The Gut-Skin Connection: What’s Really Happening
You may have heard of the gut-brain connection, but the gut-skin connection is just as critical. In fact, the health of your digestive tract directly influences your skin’s health and appearance.
The gut is where you:
Break down and absorb nutrients that feed your skin
Neutralize pathogens that could trigger inflammation
Detoxify hormones and waste
Produce key neurotransmitters like serotonin and GABA
Maintain immune system balance—over 70% of immune cells reside in the gut
A disrupted gut can lead to systemic inflammation, increased intestinal permeability (leaky gut), and microbial imbalances—all of which are major drivers of chronic skin issues.
Signs Your Gut Might Be Contributing to Skin Problems
Bloating, gas, or reflux
Food sensitivities
Sugar or carb cravings
Frequent rashes or breakouts
Brain fog or mood swings
History of antibiotics or long-term medications
What Happens When the Gut Is Out of Balance?
The gut microbiome is made up of trillions of bacteria—both beneficial and potentially harmful. When this balance is disrupted (due to stress, diet, medications, or infections), opportunistic organisms like Candida or bacteria can overgrow.
This imbalance leads to:
Damage to the gut lining
Toxic byproducts entering the bloodstream
Immune activation
Cytokine release → inflammation in the skin
This is why topical treatments alone usually don’t work for chronic skin issues. We have to go deeper—to the root.
Common Skin Conditions and Their Gut Connections
Eczema
An inflammatory skin condition, often linked to:
Leaky gut
Food sensitivities (especially dairy and eggs)
Candida or bacterial overgrowth
Nickel sensitivity due to gut permeability
Supportive Nutrients & Supplements:
Betaine HCl + pancreatic enzymes
Fish oil (omega-3s)
Zinc, Vitamin A, D, E, and B-complex
Psoriasis
An autoimmune-related condition with environmental and gut triggers. Research links Candida overgrowth and gluten sensitivity to flare-ups.
Supportive Nutrients & Supplements:
Betaine HCl + enzymes
B vitamins (riboflavin, folate)
Chromium, Vitamins A, C, D, E
Omega-3s and zinc
Acne
Root causes often include:
Hormone imbalance
High sugar/refined foods
Food sensitivities (especially dairy)
Toxin buildup
Poor gut flora balance
Supportive Nutrients:
Zinc, Selenium, Vitamin A
Pantothenic Acid (B5), Vitamin B6 (for PMS-related acne)
Vitamin C
Rosacea
Often linked to:
SIBO (Small Intestinal Bacterial Overgrowth)
Food triggers such as spicy foods, alcohol, or histamines
Supportive Nutrients:
Digestive enzymes with HCl
Zinc and B vitamins
What We Do Differently at Purely Rooted
We go beyond the surface. Here’s how we support skin healing from within:
Elimination and reintroduction diets to identify food triggers
Functional lab testing, including:
Gut microbiome panels
Organic acid testing (nutrient status + yeast/bacterial markers)
Food sensitivity panels
Personalized nutrition and supplement plans
Mind-body support (because stress matters too)
Real Results Begin with Root-Cause Healing
Many of our clients come to us after trying every cream, serum, or steroid. The truth is—your skin isn’t misbehaving, it’s communicating. And when you heal your gut, your skin can finally thrive.
If your skincare routine just isn’t cutting it, maybe it’s time to look inward.
Ready to take the next step? Book a free discovery call and let’s explore what’s possible together.
Want to support your skin from the outside too? We recommend Pure Haven’s non-toxic probiotic skin care bundle for microbiome-friendly topical support.
Stay tuned for Part 2 of the Heal Your Skin from Within Series: 4 Factors That Impact Skin Health Beyond the Gut, where we’ll dive into hormones, detox pathways, stress, and more.

References:
Ali, I., Foolad, N., & Sivamani, R. (2014). Considering the Gut-Skin Axis for Dermatological Diseases. Austin Journal of Dermatology, 1(5).
Myers, A., MD. (2021). The Gut-Skin Connection. Retrieved from https://www.amymyersmd.com
Gaby, A. R. (2017). Nutritional Medicine (pp. 728–738). Concord, NH: Fritz Perlberg Publishing.
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