Nosferatu I'm aware most cultures eat meat. I realize fresh clean meat and dairy can be pretty healthy, but lot's of things are different in the modern world. For example, meat and dairy concentrate radiation, which keeps becoming a bigger problem. The Fukushima disaster left some milk thousands of times above the legal limit for radiation, until of course our government quickly raised the limits.
Our soils are also depleted of macro minerals, most not containing any trace minerals. Even organic food is now lacking in minerals. This affects dairy and meat even more, since it's what the animal is eating.
Again, the talk about bad meat/diary applies also to plants. I am sure you are aware that the modern agriculture has made mass production a reality but at the expense of the quality and nutrition vale of the food. This is true to every living being on the planet.. And i think that a depleted soil is as harmfull to a cow as it is to humans.. as we have mechanism within our organism, that allow to compensante for flaws in nutrition and others, so do they.
Otherwise they would not survive with what we feed them nowadays, they eat grass mostly and would roam the fields getting plenty of sun and "exercise" and now they eat grains based food with animal matter mixed in and antibiotics and whatnot.
A healthy brain produces CoQ10, and you can get some from veggies and nuts but it's less than meat. I actually eat phytoplankton which contains CoQ9 which is believed to help your brain produce CoQ10. The whole B12 think is largely a myth, what tests as B12 is actually an analogue. Anything you think has B12 in it in fact doesn't. Vitamin B12 deficiency occurs from lack of probiotics which synthesize B12, and maybe something else I can't remember right now. All indigenous cultures consumed probiotic foods or drinks daily. The SAD (Standard American Diet) doesn't contain any probiotics. Make your own water or dairy kefir or kombucha for cheap probiotics. The Aztec people used to bring only Chia seeds with them on month long travels, traveling long distances and fighting hard. The Aztecs were some of the hardiest, toughest people I can think of. Nuts and seeds like chia flax and hemp are healthier sources of fats.
It isn't hard to get tested to see if you actually are deficient in something. There are vegans who test to have normal or above levels of all nutrients.
I got tested several times, and i was within or above all levels, including protein, uric acid, cholesterol.. i did not got sick any more than i would with a regular diet. That is different from saying that i improved in the long run. I improved after resuming meat eating.
vorrange I'm not aware of any scientific evidence that you can't get enough vitamin a from thousands of times the RDA of beta-carotene.
You don't need Taurine anyway, it's a non-essential amino acid. Like I said before, many vegans are not healthy because they lack certain nutrients. If you aren't consulting with a nutritionist it would be very dangerous to breast feed a baby or attempt to feed a baby vegan food. I'm not surprised people have issues with this.
You need taurine, you just don't get terribly ill from the lack of it. The non-essential aminoacid argument is one of the flaws for me in the vegan theory.. as other non-essentials like B12 or retinol.. It is like you stop acknowledging you would benefit from it.
And another thing you keep forgetting, science is not the truth, science is discovering step by step all aspects of our life but we keep discovering new things everyday!
Lots of people can afford cheaper vegan complete proteins like hemp, which also contains lots of iron. Industries have made up the nutritional norms based on what cheapest for them to produce. And they've been doing it for a long time.
People have eaten Spirulina for centuries. You don't need the Taurine in Irish Moss. Without modern technology including the ability to ship things, people would not be able to live in many of the places we now occupy. Many people could be healthy vegans eating locally, as long as they live in a warm climate. Since we aren't limited by where we live, I like to experiment with foods from all over the world. Industries just made up the nutritional norms based on what cheapest for them to produce.
There are much more people who cannot get access to all these superfoods than the ones who can. If, for example, you compare the south indians with the north indians (not native americans, i am talking about India), you will notice that in general, the ones from the south are shorter, with a decreased life span and usually more fat and with more health problems.. guess who are the meat eaters? 
Also, paleontologists can identify hunter-gatherers from agriculturists based on the bones and teeth, since after adopting and agricultural diet with more grains and less meat they started to develop dental problems, decrease in health and bone density and general height diminished greatly.
People live longer on a plant based diet. I am still unaware of any nutritional deficiencies in a diverse whole food vegan diet which to me means fruits, vegetables, nuts, seeds, sea vegetables, grains. And the more superfoods I eat, the better I feel.
Actually this is rebutable.. and highly biased.. there are again, many examples of civilizations where you have one of the highest life expectations and they are all meat eaters.
I do eat raw organic grass fed dairy and cooked meat sometimes, but rarely meat. Meat is generally really gross to me now, even after eating meat my whole life. Not eating much dairy makes me notice the congestion in my sinuses and general inflammation of the entire body, which are known effects of dairy that everyone experiences to some degree.
You just proved my point, it is bad to eliminate animal products from your diet and the grossing out happened to me as well.
All your arguments were my arguments a few years back, and although i believe people should eat much better, with much more vegetables like vegetarians do, with way way less sugar, cookies, pasta, and all kinds of flours from cereals, i don't believe anymore that it is bet to not eat meat/fish. About the diary, there is mixed views about that and i am not entirely sure which is best. The modern process of the milk greatly reduces the humans ability to properly digest it, altthough youghurt, butter and cheese due to their levels of probiotics is somewhat okay. If you think hunter-gatherers did not colect milk as well. That is why i believe that the intolerances we have or minor reactions to certain foods like improper digestion may be a sign of bad cooking processes or less indicated foods for us, albeit tolerable.
