PLOD1 and polycystic ovary syndrome: Subgroup analysis revealed that the Mediterranean diet, low‐calorie diet combined with a low‐carbohydrate diet and energy‐restricted diet groups had improved LH levels, the energy‐restricted diet group had improved E2 levels, and the low‐calorie diet combined with an extract diet group had improved FAI values; overweight PCOS patients and obese PCOS patients in the dietary intervention group had improved LH and E2 levels and LH levels, respectively.