My hair looks better even after starting oral supplementation. Is this possible or wishful thinking?

FYI, I’m menopausal so I initially thought that might explain the hair loss, but it still feels unusual to be losing this much hair at my age, and the texture had become terrible. I’d been blaming it on hair dye, etc., but since I started supplementation over the summer, mainly high-dose iron, B12, and a few other things, I’ve noticed changes.

I did supplement continuously, but in a very unruly way. For example, I might take really high doses of iron for a whole week, then get scared about the side effects and switch to taking it only three times a week, or just once, that kind of pattern. So it was continuous, but not consistent.

What have your experiences been in hair wise