Cravings and iron supplements

I started taking iron supplements a month ago (rx'd by my doctor for anemia). Since they've started to "kick in", I've been getting really strong cravings for meat (a double five guys burger would hit the spot right now and I just ate...), chinese food, and sex. I've googled and haven't been able to find any relationship between the two (besides pregnancy - which I'm not). It's pretty harmless and my husband is certainly enjoying it.

Just wondering if anyone else has had this as a side effect, or any other 'positive' side effects.