On New Year's Eve this year, I made a spontaneous resolution to go vegetarian. It wasn't exactly a well-thought out rational decision; I mainly just wanted to see what it was like and if I could do it. I never really liked the cruelty argument, probably because that would entail coming to face with the fact that I was responsible for quite a bit of that cruelty. Mainly, I was interested in health benefits, and figured a good way to test those would be to become my own guinea pig. Ten days into the new year, I've only eaten meat twice (I had sushi with my brother on his birthday, and one night I was slightly intoxicated, and really wanted a bacon cheeseburger.), and it has been surprisingly easy. I still usually eat an egg sandwich in the morning for some meat-substitute protein and take some vitamin supplements until I can figure out enough recipes and techniques for meeting my nutritional requirements without. I also don't plan on turning my nose at my aunt's turkey on Thanksgiving or my dad's barbecue ribs on Independence Day, but if I could get meat consumption down to once or twice a month, it would be, I feel, a big improvement.
Anyways, the reason that I think I'm going to stick with it is that it helps me get in in touch with my body and its nutritional needs. I guess it's really more of a sub-benefit of the health argument, but even if I fell off the vegetarian wagon, I'd be better able to know exactly what my body needs, and follow through on another diet. I know for instance, when I need more protein. Also I now get the most unusual feeling, a craving for salad.
I really would like to know from other vegetarians what drove you to become one. What arguments did you find most persuasive? Most of the vegetarians I know don't do it for strictly rational reasons. A coworker of mine was raised by hippie parents and never knew any other way. My cousin has been a vegetarian since around age seven when she realized meat was animals. Some other friends of mine became vegetarians as adolescents as a way of asserting their own individual identity. I want to know about some cases of people being persuaded purely by rational arguments.
Most of the vegetarians I know don't do it for strictly rational reasons.
Hi TheRev. I became vegetarian at the age of 20. In my case, the conversion wasn't accompanied by any emotion, and was the result of rational reflection: I just concluded that eating meat caused much unnecessary suffering to other sentient beings. There is of course a selection bias, but most of the vegetarians I know (including many folks at 80,000 Hours, my current employer) have become vegetarians for similar reasons. Here's a relevant comment by Carl Shulman:
...I'd say that
(Note: I wasn't quite sure whether this warranted a high level post or just a discussion. I haven't made a high level post yet, and wasn't entirely sure what the requirements are. For now I made it a discussion, but I'd like some feedback on that)
I've been somewhat surprised by the lack of many threads on Less Wrong dealing with vegetarianism, either for or against. Is there some near-universally accepted-but-unspoken philosophy here, or is it just not something people think of much? I was particularly taken aback by the Newtonmas invitation not even mentioning a vegetarian option. If a bunch of hyper-rationalists aren't even thinking about it, then either something is pretty wrong with my thinking or theirs.
I'm not going to go through all the arguments in detail here, but I'll list the basic ideas. If you've read "Diet for a Small Planet" or are otherwise aware of the specifics, and have counterarguments, feel free to object. If you haven't, I consider reading it (or something similar) a prerequisite for making a decision about whether you eat meat, just as reading the sequences is important to have meaningful discussion on this site.
The issues:
1. "It's cruel to animals." Factory farming is cruel on a massive scale, beyond what we find in nature. Even if animal suffering has only 1% the weight of a humans, there's enough multiplying going on that you can't just ignore it. I haven't precisely clarified my ethics in a way that avoids the Repugnant Conclusion (I've been vaguely describing myself as a "Preference Utilitarian" but I confess that I haven't fully explored the ramifications of it), but it seems to me that if you're not okay with breeding a subservient, less intelligent species of humans for slave labor and consumption, you shouldn't be okay with how we treat animals. I don't think intelligence gives humans any additional intrinsic value, and I don't think most humans use their intelligence to contribute to the universe on a scale meaningful enough to make a binary distinction between the instrumental value of the average human vs the average cow.
2. "It's bad for humans." The scale on which we eat meat is demonstrably unhealthy, wasteful and recent (arising in Western culture in the last hundred years). The way Westerners eat in general is unhealthy and meat is just a part of that, but it's a significant factor.
3. "It's bad for the environment (which is bad for both human and non-human animals)." Massive amounts of cows require massive amounts of grain, which require unsustainable agriculture which damages the soil. The cows themselves are a major pollution. (Edit: removed an attention grabbing fact that may or may not have been strictly true but I'm not currently prepared to defend)
Now, there are some legitimate counterarguments against strict vegetarianism. It's not necessary to be a pure vegetarian for health or environmental reasons. I do not object to free range farms that provide their animals with a decent life and painless death. I am fine with hunting. (In fact, until a super-AI somehow rewrites the rules of the ecosystem, hunting certain animals is necessary since humans have eliminated the natural predators). On top of all that, animal cruelty is only one of a million problems facing the world, factoring farming is only one of its causes, and dealing with it takes effort. You could be spending that effort dealing with one of the other 999,999 kinds of injustice that the world faces. And if that is your choice, after having given serious consideration to the issue, I understand.
I actually eat meat approximately once a month, for each of the above reasons. Western Society makes it difficult to live perfectly, and once-a-month turns out to be approximately how often I fail to live up to my ideals. My end goal for food consumption is to derive my meat, eggs and dairy products from ethical sources, after which I'll consider it "good enough" (i.e. diminishing returns of effort vs improving-the-world) and move on to another area of self improvement.