Can Iron Tablets Cause Insomnia? Why Night Doses Backfire
The Real Reason Iron Tablets Disrupt Sleep When people first search iron tablets cause insomnia, they usually expect a dramatic answer about iron acting like a stimulant. That is rarely what is happening. In practice, the sleep problem usually starts in the gut: nausea, reflux, cramping, bloating, and the low-grade body stress that makes it hard to settle down. Iron can absolutely be the reason someone is awake at 2 a.m., but the mechanism is usually mechanical and digestive, not neurological. The tablet irritates the stomach, the stomach pushes back, and bedtime turns that irritation into a full sleep problem. ...