I take Ferrous Fumarate tablets which turn my stool black, do I need to stop taking these before my Gut Health Test?

If you take Ferrous Fumarate tablets which turn your stool black, ask your doctor if you can stop taking them before your Gut Health Test.

Ferrous Fumerate tablets can affect the results of the Gut Health Test.

We recommend stopping iron tablets for 1 week before testing, or waiting until your stool returns to a normal colour.

However, if these have been prescribed by a doctor, it's important to ask them before you stop taking them.