The grain scenario is a good example of why we should not focus on personal purity and instead underscore that veganism is about reducing suffering. Beyond that, killing an animal specifically for its meat is a drastically different motivation than accidentally killing an animal as a byproduct of harvesting grain. I don't know why people insist on making it seem like vegans are hypocritical for accidentally killing insects and other small animals simply just by living. If I may, LAME!
I knew someone who stopped being vegetarian because of anemia. I have read, though, that leafy-green vegetables can be a much more efficient form of iron. It also seems that if you're anemic, you would be taking some type of medication or iron supplement, so it seems that could still coincide with a vegetarian diet.
Recently I spoke with someone who said he's not vegetarian because he thinks it's natural to eat meat. Although I tend to agree that it might be natural for humans to eat small amounts of flesh sparingly, as chimpanzees do, I think it's funny that amid all our scientific and technological advancements, people still try to cling to this naturalistic attitude - mostly only when it comes to defending their flesh-eating habits. And there's nothing necessarily "natural" about the way we harvest our foood, especially when we are talking about factory