Do you offer iron supplementation to a non-anemic adolescent athlete with a low ferritin?

I prefer having a TSAT on an overnight fast. Extreme athletes have increased hepcidin.

If ferritin is greater than 30, my cut-off, no. If TSAT is 19 or less, yes. I would not criticize someone who gave iron, but PO iron is pretty tough to take. I would prefer staying within the current parameters of 19 for TSAT and 30 for ferritin. If PO, one tab every other day as absorption better and toxicity less: win-win.