For the curious, a coffee-table book, a cookbook, and a memoir:

http://www.amazon.com/Man-Eating-Bugs-Science-Insects/dp/098...

http://www.amazon.com/The-Eat-Bug-Cookbook-Revised/dp/160774...

http://www.amazon.com/Edible-Adventure-Eating-Insects-Planet...

Not really, considering the nutritional profile of insects. There are some nutrients you can't readily get from plant-based foods, or only in poor amounts, like DHA/EPA, carosine, lysine, etc. Not to mention all the things you'd normally miss out on with traditional meat, because we're not used to eating the bones and innards of large animals here, but that you get from insects cause you'd eat them whole, so you'd get plenty more minerals, vitamins, and rarer amino acids that way.

I recommend reading this book if anybody's interested in more specifics about insect-based nutrition, and why it's actually more unique and useful than most people realize:

http://www.amazon.com/Edible-Adventure-Eating-Insects-Planet...