Should Ferritin Test Be Fasting?

If your blood sample is being tested only for ferritin, you can eat and drink normally before the test. If your blood sample will be used for other tests, you might need to fast for a time before the test.

Does ferritin test require fasting?

Ferritin Blood Test

The Ferritin Test measures the amount of ferritin in the blood, which is an indicator of iron stores in the body. Preparation: No fasting required. Stop biotin consumption at least 72 hours prior to the collection.

Does fasting affect ferritin levels?

Results. Results show that short-term (2 days) fasting significantly decreases iron concentrations in serum and hair, as well as levels of ferritin, hemoglobin, hematocrit, red blood cells, and total iron binding capacity, but the short-term fasting did not influence the other iron management parameters.