Mar 23, 2026NutritionPolyphenols, Iron, and the Real Question About ChelatesDo polyphenols block iron? A 34-trial review says they do not deplete stores in most adults. Chelated iron's long-term safety remains uncertain.iron absorptionpolyphenolsiron supplementsbioavailabilityRead article →
Mar 22, 2026BiomarkersWhy a “Normal” Ferritin May Still Signal Iron DeficiencyFerritin reference ranges may miss iron deficiency. New ROC analysis proposes higher sex-specific cutoffs—but one study cannot settle the question.ferritiniron deficiencyreference rangesdiagnostic cutoffsRead article →