What it does
Helps hemoglobin carry oxygen and supports many cellular processes.
Possible deficiency symptoms
Iron deficiency can cause fatigue, weakness, reduced exercise tolerance and, sometimes, cravings for nonfood substances.
Food sources
Meat; seafood; lentils; beans; iron-fortified cereals. Vitamin C helps absorption of plant iron.
Supplement forms
Ferrous sulfate, fumarate and bisglycinate are examples. Compare elemental iron on the label.
Before taking a supplement
Confirm the reason for low iron and assess blood loss when relevant. HFE-related iron overload requires different care. Keep iron away from children.
Questions for your visit
Could my diet, medicines, absorption or another condition explain my concern? What evidence would support treatment, and how would we check whether it helps?
Names you may see
Iron
Sources & perspective
This is an editorial adaptation of the Purser Wellness nutrient reference app. Purser teaching connections are labeled separately from clinical interpretation. Private cases and individual treatment protocols are not reproduced.
Use the public resources below for additional context.
NIH Office of Dietary Supplements: Iron
