Aside from the other points made here, many bugs are ecologically cheaper to produce per unit of nutrition. A quick google brings up a (probably biased) article

Aside from the other points made here, many bugs are ecologically cheaper to produce per unit of nutrition. A quick google brings up a (probably biased) article: http://www.rainbowmealworms.net/blog/why-we-need-to-eat-bugs/ http://www.rainbowmealworms.net/blog/why-we-need-to-eat-bugs... I used to have some other references that were a bit more scientific, but I can't seem to track those down.