A doctor warned about hair loss and low iron levels. Low iron can cause hair to fall out.

Iron helps make red blood cells. Without enough iron, you can get anaemia.

Most people get enough iron from food, but some people may need iron tablets due to heavy periods or stomach ulcers.

Dr Amir Khan said hair loss can mean low iron. But doctors might say your iron is fine when it's not.

Dr Amir told his co-host that iron deficiency is a common cause of hair loss in women. You can have low iron and still lose hair.

Your ferritin levels might be normal, but still cause symptoms. Dr Amir explained what ferritin is.

The normal ferritin level is very wide, from 30 to 300. But levels of 30 to 90 can still cause hair loss.

Even low normal levels can cause hair loss. Levels of 100 or more are healthier.

Dr Amir said iron deficiency is a common cause of hair loss in women.

Dermatologists want iron levels to be 100 or more. Be mindful of your test results if you're losing hair.

Check your ferritin number. If it's below 100, it could still cause hair loss.

The NHS lists symptoms of iron deficiency anaemia.

Your ferritin levels might be normal, but still cause symptoms, says Dr Amir.

Less common symptoms include:

The NHS says to see a doctor if you think you have iron deficiency anaemia.