The Right Fats Reduce Acne and PCOS Do fatty foods contribute to acne and PCOS? The answer is "yes" and "no", depending on which fats you're consuming. A diet high in one type of fat (omega-3) helps prevent acne by inhibiting the clumping of cells in hair follicles, which can plug up the follicle and lead to acne. But another type of fat makes acne worse by increasing inflammation. in Public bookmarkswith acnedietfatshealthpcos