How much does diet actually affect skin?

More than most topical marketing would have you believe. Protein provides the amino acids skin uses to produce collagen – low protein intake slows this process. Omega-3 fatty acids from fish, walnuts, and flaxseed help maintain the skin’s lipid barrier and reduce inflammatory responses. Antioxidant-rich foods – berries, leafy greens, green tea – help counteract the oxidative stress that accelerates visible aging. Chronically high sugar intake promotes glycation, a process that stiffens and yellows collagen fibers over time. None of this replaces topical skincare, but the two work together. The right routine performs better when it has good internal support.