Iliftrocks

I'll just link bomb, because I don't have the patience to lead people to the google.

Malnutrition that doesn't happen with a regular diet, even to twinkie popping fatties:
Parents of girl brought up on vegan diet may face charges - ParentDish

Not impossible, but takes more work, and intelligence than most people have:
Vegan, vitamin B12, and children

Face it, it's easier to get nutrients with meat in your diet. In my anthropology class the statistic for hunter/gatherers was meat was 10% of the mass of food eaten and 90% of the nutrients. Plant were 90% of the bulk and only 10% of the total nutrients. Meat is much more nutrient dense and we are not made to eat so much vegetation. Luckily we can cook and process vegetation and if we cross our t's and dot our i's we can survive, and maybe thrive on a vegan diet these days.

I may have been out of line with the cursing above, but you cannot pretend that modern meat factories are any less natural than the vegetation factories we use for food. Agriculture in general is killing off our planet's resources, not just meat production. If we are to switch to vegan, we will have to raise a whole lot more vegetation than is currently used for our food. Some foods that ruminants eat, we cannot, so farms will somehow have to be retooled to provide vegetation that we can eat. Most of which won't grow in the areas we grow the grass that animals can eat.

In the end, we need to thin out our herd to sustain, whether or not we eat vegan or a more natural omnivore diet.

Pretty interesting take on agriculture:
Spencer Wells: 'At root, we're still hunters' - Science, News - The Independent

__________________
bill hicks - "I don't mean to sound bitter, cold, or cruel, but I am, so that's how it comes out."