Several minerals play roles in PCOS management. The evidence varies in strength.
Magnesium: • Involved in insulin signalling and glucose metabolism • Deficiency is common and associated with worse insulin resistance • May improve sleep quality and reduce anxiety • Forms: magnesium glycinate (best absorbed, least GI effects), magnesium citrate (good absorption, can cause loose stools) • Typical dose: 200-400 mg elemental magnesium daily