I just accidentaly ate aluminium foil, the real thin kind. I know a tiny piece isn't bad at all, but I'm not sure I had a tiny bit. It was a couple of smaller pieces, I don't know how many (I'd say 5-6 pieces) and roughly 5cm2 each. Don't ask me how I managed to eat all this. All I can say is that hunger and being awake for 30h plus is not the best combination....
Aluminium Foil is very bad to eat. They can cut your intestines but you stomach has acids that can break it down. I dont think they are poisonous though.
Aluminum is everywhere in nature so it will not poison you. but it might cause intestinal blockages, so i'd recommend that you stop losing bets, and start eating yogurt and fiber filled foods until you see aluminum in your toilet
5cm2 each!! If you have any unusual problems, then get it checked out immediately. Aluminium foil, correct me if im wrong, is highly poisonous.