The problem with posting material to defend your views is that it will kill a debate, if you google "problems with being a vegan" a lot of reasons and research by Dr.s professors etc will point out the disadvantages of a vegan/vegetarian diet, which will not back your arguments up, nor will it be against them, its a well known fact that most research is funded by interested parties, it all depends what you beleive, and of course the path you choose, for me you lost your argument when you implied that the humane slaughter of animals was murder,and the decrying of the effects on plantlife, I mean I have seen programs which have measured the effects on plants under stress, that of course doesn't mean they have feelings, or does it?
There are just as many problems with being a vegan as there is being a vegetarian, or an omnivore, plants contain toxins which are produced as a defense mechanism, too much reliance on Soy can kill you, too much meat can kill you, too many bananas can kill you, too much water can kill you,
We here in the UK and no doubt in many other countries have seen the devastation of the environment through, excessive farming practices where hedges, roads, building have all been removed to make these super farms for growing cereals, human occupancy of land in the UK is a mere 5%, so we have plenty of spare land available for animal grazing, we have vast forests which are not looked after and some are actually dangerous to walk around in, the trees are struggling and in competion with each other for light and nutrients, and its not unusual to see many fallen and standing rotted trees, why, simply because there is no money in looking after them, even though most owners are in receipts of grants to look after them, and of course no one is interested in maintaining the wildlife, 95% of all known animal life is extinct, and its not because they have been harvested for food,(although some have), a few years ago I looked into bringing the American Bison here to Cornwall, as I had the idea that they could roam freely on the moors and survive, and I am sure they would do well, but the legalities of doing it were prohibitive,( they are classed as dangerous animals).
Plants can feel the warmth of sunlight, so they must be able to feel, they know when to open up to attract the birds to help pollenation, etc etc, so it could be argued they are sentient, maybe its better if we think they aren't so we feel better whenwe eat them..........this is said in jest....but you can see i hope how an argument can be turned.
Although this is an interesting thread, I have yet to see any proof that eating plantlife is of benefit, its ok to say vegans are healthier, but you could say that about omnivores, how do you actually prove the statement to be true, I know a lot of people are allergic to many plants, nuts, as well as meats and fish as well as dairy products, this merely shows that we are not all the same, and therefore can't always follow the same path through life.