Is it normal to poop green when taking iron?
Yep.Totally normal
Yes. Iron supplements can make your poop look dark green or nearly black, and that’s usually harmless.
Iron can change stool color, sometimes to dark green or almost black. It’s a common side effect, and certain foods or faster-than-usual digestion can also make poop look green.
If it looks black and tarry or you notice blood, contact a healthcare professional, especially if you feel weak or dizzy. Otherwise, green poop while taking iron is generally nothing to worry about.