Is becoming a vegetarian/vegan worth it?

[palou]

scrapking said:

HandofPrometheus said:
Life without meat is a waste.

    Throughout our evolution, humanity has been predominantly a plant-eater, and like many herbivores (and unlike most omnivores) we can't taste protein.  

Which is not a convincing argument, since we do actually need proteins (though they can also come from different sources.)

Making appeal to what's "natural" is a poor argument, in any context. Rationality should determine morality. Not that I disagree with the conclusion - as said, I find it hard to defend an industrial meat-based diet as moral, especially when considering highly intellegent species, such as the pig, which can very obviously feel pain, empathy, fear, disgust (pigs actually can't stand to sleep anywhere close to defections in nature - in industrial meat production, they don't have a choice.)