O.K. this may be more of a warning than a rant, but let's just say I took one for the team. We were rotating/purging stock from an old cache my wife had purchased several years ago. Some things had expired and were just pitched. Some of the dry breakfast cereal seemed like it would be O.K. It was in the original packaging and heavily wrapped with stretch film. I believe this was six or seven years old. What the heck? I will give it a try.
Well, it didn't kill me. Didn't even make me sick. I ate quite a bit of it to no gastric distress. I would not recommend it, and I would not do it again. It was quite stale, and had an odd aftertaste. If it was all you had it would fill the void, but in the future we will pay closer attention to rotating stock.