SHBG and polycystic ovary syndrome: The results showed the beneficial effects of 8 weeks of MK‐7 (a derivative of vitamin K with high bioaccessibility and long half‐life in the form of K2) supplementation on DHT hormone, FAI, SHBG, serum fasting insulin, HOMA‐IR, HOMA‐B, QUICKI, and some anthropometric parameters including waist circumference, fat mass, and skeletal muscle in PCOS patients.