What it does: Iron helps deliver oxygen to cells, supports the production of energy in the body, and plays a role in immune and cognitive functions.
How it is used: Iron supplements are commonly used for iron deficiency anemia, to improve energy and reduce tiredness, and to support groups at risk for low iron, such as menstruating or pregnant people.
Natural sources and supplement forms: Iron is naturally found in foods like red meat, poultry, fish, beans, lentils, spinach, and fortified grains. Common supplement forms include ferrous sulfate, ferrous gluconate, and carbonyl iron.
Why it appears in supplement formulas: Iron is added to supplements to help individuals with diets low in iron, increased blood loss, or higher bodily demands maintain optimal red blood cell health and energy.
What to know before use: High doses of iron can cause digestive discomfort or, in rare cases, toxicity; consult a healthcare provider before using iron, especially if you have chronic illnesses or are on other medications.
Interesting Fact
Iron Makes Red Blood Possible
Iron is a key part of hemoglobin, the protein in red blood cells that carries oxygen from your lungs to the rest of your body. Without enough iron, your body can’t make healthy red blood cells, which is why iron is included in many supplements. Leafy greens, beans, and red meats are natural sources of iron in everyday diets.
