A disrupted barrier can result from over-cleansing, using harsh skincare products, nutritional deficiencies (especially in zinc, vitamin A, and omega-3 fatty acids), and gut imbalances
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3 A 2023 systematic review and meta-analysis of vitamin D supplementation in PCOS found pooled improvements in ovulation rate (RR 1.42, 95% CI 1.141.78) and pregnancy rate (RR 1.44, 95% CI 1.281.62) compared with controls