“…The inclusion criteria were as follows: (1) studies published in English and peer-reviewed, randomized, and cluster randomized controlled trials (RCTs); (2) PCOS diagnosed according to the Rotterdam criteria; (3) intervention: the treatment group receiving antioxidants and the control group receiving placebo; (4) the primary outcome being a metabolic index and the secondary outcome being a basic index; and (5) the study using biological and chemical organic nutrients as antioxidants, including vitamin D, minerals, polyunsaturated fatty acids, and synbiotic beverages, including vitamin D, vitamin E, carnitine, coenzyme Q10, acetylcysteine, omega-3, folate, selenium, zinc, resveratrol, curcumin, garlic, concentrated pomegranate juice, and complex nutrients. 14…”