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New Guidelines Uncover Widespread Iron Deficiency
23 Oct
Summary
- Nearly one-third of US adults may be iron deficient.
- New guidelines set lower ferritin thresholds for diagnosis.
- Iron deficiency causes symptoms beyond anemia.
Iron deficiency is a widespread and often underrecognized health issue, with nearly one-third of adults in the United States potentially affected. New diagnostic recommendations released in September aim to improve early detection and treatment.
While anemia involves low red blood cell counts, iron deficiency can cause symptoms such as fatigue, brain fog, and cravings for nonfood items even when hemoglobin levels are normal. Previously, standard blood tests might miss these cases if anemia had not yet developed.
Updated guidelines from the American Society of Hematology establish new ferritin concentration thresholds for diagnosing iron deficiency. These include 30 ng/mL for most adults, with higher thresholds for those experiencing heavy menstrual bleeding or on a vegan diet. These revised standards are crucial for identifying individuals who are symptomatic but not anemic.
Common causes of iron deficiency in the U.S. include blood loss and digestive conditions, particularly for women due to menstruation. Children and pregnant individuals are also at higher risk. Endurance athletes and those with chronic gastrointestinal issues may also develop deficiencies. If unexplained fatigue persists despite a healthy lifestyle, checking ferritin levels is recommended as an accessible diagnostic step.
