Skin Improvements on Keto: What the Evidence Shows
The ketogenic diet alters how the body processes energy, shifting from glucose to fat-derived ketones. This metabolic state appears to influence skin health through several pathways, primarily by reducing systemic inflammation and insulin resistance – two factors implicated in common skin conditions.
The Inflammation Connection
Chronic inflammation underlies many skin disorders, from acne to psoriasis. A 2019 study in the Journal of Investigative Dermatology found that high-glycaemic diets exacerbate inflammatory markers in skin tissue. The ketogenic diet’s very-low-carbohydrate approach eliminates these triggers. keto and inflammation may explain why some report reduced redness and irritation within weeks of starting the diet.
Insulin’s Role in Skin Health
Elevated insulin levels stimulate sebum production and keratinocyte growth, contributing to acne. Research by Paoli et al. (2013) demonstrated that very-low-carbohydrate diets significantly lower insulin levels, with participants showing measurable skin improvements. This aligns with clinical observations that managing blood sugar spikes often correlates with clearer complexions.
What This Means in Practice
In the UK, adopting keto for skin health means swapping high-glycaemic staples like white bread (£1.20 per loaf at Tesco) for low-carb alternatives. Seasonal berries (currently £3.50 per 400g punnet at Waitrose) provide antioxidants without spiking blood sugar. Many report better results when combining dietary changes with proven topical treatments recommended by NHS dermatology services.
Frequently Asked Questions
How quickly might I see skin changes on keto?
Most observe initial changes within 4-6 weeks as inflammation markers decrease. Full effects often take 3-6 months as insulin sensitivity improves and cellular turnover normalises.
Can keto help with conditions like eczema or rosacea?
While not a treatment, the diet’s anti-inflammatory effects may support management. A 2018 study in Clinical Nutrition noted reduced severity scores in some participants with inflammatory skin conditions.
Are there any skin-related side effects of keto?
Some experience temporary dryness during adaptation as water balance shifts. Increasing electrolyte intake and using fragrance-free moisturisers (like £6.99 Simple Kind to Skin at Boots) usually resolves this.
The Bottom Line
The ketogenic diet’s impact on skin likely stems from its effects on inflammation and insulin regulation rather than any direct ‘skin cure’. Those with persistent conditions should consult a dermatologist alongside dietary changes. If you’d rather not do the macro maths yourself, the Keto Dieting app does it for you on Google Play and the App Store.
References
- Paoli A, Rubini A, Volek JS, Grimaldi KA (2013). Beyond weight loss: a review of the therapeutic uses of very-low-carbohydrate (ketogenic) diets. European Journal of Clinical Nutrition. https://doi.org/10.1038/ejcn.2013.116
