Correcting Iron Deficiency to Regrow Hair?

(female) if my hair loss has been caused by an iron deficiency, how long will it take to see some regrowth now that I have been taking iron supplements?

Nothing happens fast with respect to hair growth. If your hair loss was due to iron deficiency alone, I would give it about one year to see some growth. Unfortunately, more often than not, I find that hair loss is not completely reversible even after correcting the problem.