There is a bit of two-way extremism going on here. On one side, Rob says this can replace food. On the other, this guy, Greg, says you can't replace food because of metabolism differences in humans.

Whatever, it doesn't matter. Soylent will probably still succeed. It's the power-bar of a modern era. You won't eat it all the time, but it will be nice to have around as an alternative when you don't want to cook a meal. I'm actually quite looking forward to having this around to take with me each day as lunch. Probably better for me than the crap they sell in some of my local cafeterias.