It's Soylent Green!
LOL. This is getting away from the mislabeled fish subject, but your comment reminds me of blog entry I read the other day about a "synthetic diet" where instead of 'real' food, there is a substance that contains the nutrients of a well balance meal. Of course they named this substance "soylent." When I read about this soylent, I thought about the "Protein" of the Firefly series.
http://tomcritchlow.com/the-synthetic-diet-revolution