Can Eating More Fiber Improve Your Skin? | Dermatologist Explains

Fiber may be doing much more than supporting digestion. In this video, dermatologist Dr. Dray explains the emerging science behind the gut-skin axis and how dietary fiber may influence the gut microbiome, inflammation, immune function, metabolic health, and potentially skin health. When gut bacteria ferment fiber, they produce short-chain fatty acids (SCFAs) such as acetate, propionate, and butyrate. These compounds can influence immune signaling and may play a role in maintaining the skin barrier and regulating inflammation. Dr. Dray discusses what the research currently shows about fiber and eczema, psoriasis, acne, and other inflammatory skin conditions, while separating promising mechanisms from what has actually been demonstrated in human clinical studies. The video also explains why fiber may be relevant to acne through its relationship with blood sugar, insulin, IGF-1, and dietary glycemic load, and why a Mediterranean-style dietary pattern keeps appearing in discussions about gut and skin health. Dr. Dray also shares practical advice for increasing fiber intake without triggering excessive bloating, gas, or abdominal discomfort, including how to gradually introduce foods such as beans, vegetables, fruits, whole grains, nuts, and seeds. In this video: 00:00 Introduction 01:41 What Happens to Fiber in Your Gut? 02:38 The Gut-Skin Axis 04:06 Fiber and Eczema 05:36 What About Psoriasis? 06:45 Fiber and Acne: The Connection May Be More Indirect 07:57 Why the Mediterr