I was wondering if anyone has ever gotten a black stool from certain foods. This morning mine was MOSTLY black--except for some undigested mushrooms. For dinner last night, I had two glasses of wine, spinach, mushrooms, and my mother's slow-cooked prime rib (DELICIOUS!). I've heard that red meats, spinach, venison, things like that can turn a stool black, is this true? I've had IBS for some time now, don't really have much stomach pain right now, had a bit of diarrhea last night (only a couple hours after I ate, I suspect it was unrelated to what I ate previously). At any rate, my stool has pretty much been completely normal colored up until this morning. Any thoughts? I'm freaking out unnecessarily I feel.