If humanity ever discovers alien organisms that do not possess complex intelligence capabilities as us humans, then should we treat them as animals and breed them for food?
Given that alien lifeforms will also possess alien bacteria and other microscopic organisms, how toxic do you think their meat can be to our body? Will our bodies be able to adapt to these alien meats?
One thing's for sure, its gonna suck for muslims and jews because the meat's gonna be totally alien, and thus wont be among the list of halaal and kosher meats :P.