Health

Attention: The threshold has changed – you might be iron deficient

The American Society of Hematology has published new guidelines for diagnosing iron deficiency, and according to them the adult threshold has risen from a ferritin level of 15 to 30 nanograms per milliliter. The implication: quite a few people who thought their tests were normal may discover they have iron deficiency, even without anemia. So what exactly has changed, who it is relevant to, and why you shouldn’t rush to the pharmacy?