10/12/2026
On September 16, 2026, the American Society of Hematology released landmark new guidelines raising the ferritin thresholds for diagnosing iron deficiency across every population. Children. Adults. Pregnant women. Menstruating individuals. Under the old thresholds, up to 70% of iron deficiency cases in high-risk groups were being missed. These new guidelines change that and validate what functional medicine providers have recognized for years.
A ferritin of 12 ng/mL is not fine. A ferritin of 8 ng/mL is not fine. These numbers produce real symptoms and those symptoms often resolve when iron stores are properly corrected.
Read the full article in my blog to learn about the new ASH guidelines, the symptoms of iron deficiency across every age group, how to supplement safely with vitamin C and B vitamins, and when IV iron infusions are needed.
Learn about the recently updated guidelines on iron deficiency in physical and mental health and their implications for treatment.