This thread is inspired by a comment by a member in another thread that replied to a spammy post.
How far are you willing to take your moral standard with regard to not consuming animals or animal products?
In such an scenario that the only thing left to eat was hermetically sealed or canned foods that contains meat or meat products, what would you do? Would you set aside these moral standards and eat meat or meat products? Would you slowly die of starvation?
As for me, being vegetarian, I don't have a definite answer as I have not given it much thought. I'll ponder this and reply later in the thread.
I think by the time you're hungry enough you'd eat your socks. There is actually a trigger in the brain that will force you to eat in such desperate circumstance no matter what you'd normally think about it. That trigger will prompt you to eat insects, vegetation, and anything else that is naturally edible. In fact, you'd eat that can of meat and your brain would be flooding you with so much pleasure you'd switch from vegan to normal omnivore in a heartbeat. Your brain will nearly instantly get over that if it has to.
Of course, if you were truly sated your brain will leave you to your normal mental meanderings, but it'll take over the conscious decision making in the case where your actions would likely get you killed from starvation.
This is always my argument against vegan being a natural diet for humans. Your survival instincts don't care about your food politics/religion. But, anyway, history backs this up -- it wasn't uncommon in the past for people to consume meat even if their culture normally didn't if there were catastrophic crop failures and so on. You gotta eat what you got, and being able to choose is a luxury. That's why in some survival scenarios people even went cannibal -- it's that hardwired into your brain that it'll literally justify anything to live -- and worse, you won't even get to "choose" your think-y parts of the brain will be over-ridden.