Can iron deficiency be hereditary?
Explore the genetic variants associated with iron-deficiency anemia and anemia.
Iron deficiency is the most common deficiency disorder in the world — the cause is usually diet or blood loss, but studies show that genes controlling iron uptake and transport make people's levels differ.
What the analysis shows
DNAHelper shows which iron- and anemia-associated variants your raw file contains. The result is a statistical association — not a ferritin test and not a statement about your iron status. The analysis is based on the traits Iron deficiency anemia, anemia (phenotype), iron biomarker measurement (72 associated variants, strong evidence strength).
Which variants matter
The strongest signals lie in genes such as TMPRSS6 (controls hepcidin, the body's iron regulator), TF (transferrin — iron's transport protein) and the HFE region.
Variants in these genes shift iron markers modestly in population data — the same gene set is also studied in the opposite condition, iron overload (hemochromatosis).
What research has actually found
Genome-wide studies of blood counts have replicated the associations — but the effects are small compared with diet, menstruation, pregnancy and blood loss.
Genetics can explain why two people on the same diet land at different iron values — it does not say whether you are iron deficient right now.
What matters more than genes
Diet, menstruation, pregnancy, donation and any blood loss dominate. Suspected iron deficiency is diagnosed with ferritin and a blood count — not with DNA.
A genetic result neither confirms nor rules out deficiency or overload. Fatigue or questions about iron belong with healthcare and a blood test.
Limitations — read this before interpreting the result
This is educational information about statistical associations — not a medical statement, not a health test and not a statement about your health. The analysis is based on the traits Iron deficiency anemia, anemia (phenotype), iron biomarker measurement (strong evidence strength). If you suspect symptoms, contact healthcare — a predisposition is not a diagnosis.
Privacy: your file never leaves the browser
You pick your raw file locally — it is parsed and analysed entirely in your browser and is not uploaded for the standard analysis. The only exception is the optional DNA Chat feature where you, after explicit consent, can share selected variants. Read the privacy policy · What happens to your DNA file?
Compatible raw files
Works with raw data exports from MyHeritage, 23andMe, AncestryDNA and FamilyTreeDNA (.txt, .csv, .zip). The download guides show exactly where to find the file at your provider — and the file formats are explained here.
Also read: Method & science · All analyses · All traits · Vitamin D and genes · High blood lipids and heredity