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 →
Mar 9, 2026NutritionExercise, Hepcidin, and the Best Time to Take IronHard training can raise hepcidin for hours and reduce iron export from the gut. What athlete studies say about iron timing, ferritin, sex, and low-carb diets.iron deficiencyhepcidinnutrient timingferroportinRead article →