Iron helps to carry oxygen to your red blood cells, which can make it an essential mineral for lots of functions, including hair growth.
Having anaemia, which is often the result of an iron deficiency, is a common cause of hair loss, especially in women.
If your body lacks the correct amount of iron to make enough red blood cells, the oxygen they create will be prioritized by your vital organs rather than your hair follicles.
Without enough oxygen, your hair follicles cease to function properly, and your hair may fall out.