Unlike some products, I'm going to be upfront about my purpose: I'm on a rant here, people.
Trisodium Phosphate in the paint department at my first job. You use it to prep your walls for a new coat of paint because it takes the shine of old paint. I looked around and while they say that TSP is generally safe added to food, I don't particularly trust the FDA or USDA these days (haven't for awhile, actually) and I think that anything that will take the top coat off your paint is probably not a good substance to ingest. I could be wrong here, but that's just how I feel.
For the second part of this rant, take a good look at the picture on the front of the box. Do you see one female athlete in the picture? Me neither. Does General Mills genuinely think that women can't be champions? What about the US Women's Soccer team? What about every other female athlete in the world who can seriously kick ass? Would you really want this box of cereal sitting on your table where your sons and daughters could both see it? What the hell kind of message is that?
Shame on you, General Mills. This box is going straight into the trash.