How Your Diet Shapes the Way Your Skin Ages (2025)
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The skin is your body's largest organ, accounting for roughly 15% of your total body weight. It acts as the primary barrier between your internal systems and the external world, and reflects the cumulative impact of daily habits and internal physiology. Like every tissue in the body, the skin undergoes a natural aging process marked by gradual structural and cellular changes. 1 While this process unfolds over time, its pace and visibility are shaped by external influences. Among these, diet has emerged as a key factor with far-reaching effects on skin appearance and resilience. A recent review published in Food Science and Nutrition (2) explored this connection in depth. Drawing from research over the past five years, the authors examined how dietary habits and specific foods affect skin aging. Understanding Your Skin's Structure and Function Your skin is a layered defense system that gives protection from external threats, maintains internal stability, and participates in immu...