Yeh the iron pills do work. Had to take em once my self when I got anemic, somewhere in me youth, far back, in the day.
Cooked spinach is ok, but most over cook it to death. Eww yuk.
Actually the entire spinach/cabbage/broccoli family works for iron too,
forgot about all them,
spinach, collard greens, brussel sprouts etc. etc. make great stir fry too, if lightly cooked.
Some folks cook em to death til they green goo slush ! LOL
We were at a mexican resturant other day, a fine dining resturant.
Sooo I ordered the combo burritos and one was full of green goo, that one burrito was way overcooked YUK. Could not eat it at all.
Broccoli cabbage can be eaten raw too, so lots of variety, with any of them.