For smaller animals heat suffocation has worked well, takes a few days but no extra work.

you are so right, setting up these conditions all over the planet is the only logical way to feed a population, I'll try to be less hysterical.

Never said it was an argument. Many people buy canned beans because they don't want to spend hours rehydrating and cooking them. (This time can be cut down using a pressure cooker and a few other methods) That doesn't change the fact that canned beans come with the salt and carbs.

Also since you are comparing to beef, beef has more than twice the protein per serving as common black beans. (Calories will be much higher in beef as well due to fat content). Which is why I said what I said originally, watch what you consume and how it prepared. A higher carb diet is what made America overweight to begin with, thankfully neither of these options have sugar in their raw forms