Your body uses iron to make hemoglobin, the protein in red blood cells that shuttles oxygen from your lungs to every tissue. The mineral also helps convert food into energy and keeps your immune defenses running. Many people reach for an iron supplement when diet falls short or demand spikes; common reasons include heavy periods, pregnancy, or gut conditions that blunt absorption.
Take iron with food to ease stomach upset. Pair it with vitamin C (a small glass of orange juice works) to boost uptake. Calcium-rich foods, coffee, and tea get in the way and can slash absorption noticeably, so separate them from your dose.
Nausea, constipation, and dark stools are typical side effects. Excess iron acts as a pro-oxidant and can build up in organs, causing harm over time. An accidental overdose is a serious emergency, especially for a child. Store bottles locked away and stick to the dose you need.