I've noticed the same. I'm a woman so bleed often, I'd feel the fatigue but my blood work didn't show anemia, so my primary care physician didn't feel the need to prescribe it yet. I decided to take supplements on my own and monitor the ferritin levels to make sure I don't over-do it.
Note, if you aren't bleeding regularly, it's very unlikely you need it, and iron might be harmful. Make sure to test your ferritin levels before and regularly as you do it.
Note, if you aren't bleeding regularly, it's very unlikely you need it, and iron might be harmful. Make sure to test your ferritin levels before and regularly as you do it.