Susperia said:
Okay I'm waiting.
And I only brought up Einstein because you insinuated that meat eating produces smarter people---not true!
In fact, studies have found that plant foods like green vegetables help your brain function better than most things, including meat.
The first thing I should address is the nature of your being a vegetarian. Why? There are only two possible reasons: one you dislike animals being killed for food; two, you think being a vegetarian is far healthier. The second one as I will discuss below, is wrong (from the stricly vegan perspective); the first one, is a ethical/moral choice (however I remind you that all livestock have been bred by humans for a few thousand years solely for the purpose of consumption, and that the Islamic and other primitive religions, honor and bless the livestock about to be killed for food).
Now, if you introduce dairy, eggs, into your diet, with vegatarian fare, yes, you will get the necessary proteins you need--Perhaps the ancient Indians (subcontinental variety) figured this out a few thousand of years ago. I thought all vegans knew this? Every vegan i know has resorted to introducing dairy into their diet out of necessity. But, it is highly unlikely you will be at top athletic perfomance--even endurance runners need complete amino acids.
As for brain performance, I really havent the slightest clue. But, yes from a evolutionary perspective our eating and hunting meat, was quite important in our intellectual development from every anthropological work Ive read. In addition, from history, one must remember that the introduction of a daily amount of meat into the European diet from the middle ages on, led to far bigger and taller people, and it should be no surprise that the plains and eastern Native Americans who ate a diet consisting of a great deal of fresh meat, were far--more than foot taller than their South western, and Central American genetic brethern, who relied more or less on corn etc for their diet. Or take America as an example, asians and Indians getting the full caloric intake back in India or Asia, are not nearly as big as say their sibling raised in meat eating America would be. But, as I have stated before, yes, you can get the necessary proteins from eggs and dairy--and they are actualy better proteins than meat. And let us also remember, the Atkins diet, as well as most ridiculous bodybuilding diets, are based on the idea of eating nothing but protein and fat, as the body will process it easier, and you will lose fat--of course one needs some carbohydrates.
But the big issue here is, if you eat a little organic(if it makes you feel better) meat once a day, or every other day, you will reap nothing but benefits. The best diet in the world is thought to be the Japanese of the Mediterranean diet. Both eat a small portion of meat or fish once a day.
A high protein intake is good for heart disease:
http://www.washingtonpost.com/wp-srv/health/nutrition/stories/daily/aug99/protein0805.htm
High Protein is essential for athletes:
http://www.jssm.org/vol3/n3/2/v3n3-2.htm
Evolutionary past of (thanks FP):
http://www.newscientist.com/article.ns?id=dn4122
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Human development and evolution is something that has fascinated humans since the beginning of our existence. The desire to know and understand from what we came and how it occurred are fundamental in understanding who we are. Despite many differences in how man came to be, the vast majority of people believe that man has evolved, is evolving, and will continue to do so. One of the many factors in human evolution was
the introduction of protein into the diets of humans. Without protein human evolution would have stopped leaving us much like the primates many say we are derived from. Protein, and more importantly animal protein, was necessary for primates to continue evolution, and the tools invented were necessary to obtain and use the protein sources. Animal protein mixed with the diet already existing was ideal to continue progression as a species.
The Importance of Protein
Protein is the building block of all muscle in our bodies. Today many people think of this
as the large defined muscles we see in athletes. This is true but there is much more to the story. Protein also helps us develop the other .less noticed muscles. such as our eyes, lungs, brain and other organs. Protein and the right type were absolutely necessary for man kind to continue progression.Many people know that protein can be found in many food sources, many plants including beans contain protein. Vegetarians argue that plant sources contain enough protein. What many people don.t know is that there are complete and incomplete proteins. A complete protein contains all sixteen essential bcaa.s (branched chain amino acids) these sixteen amino acids are the most important and can combine and react in order to create any of the other amino acids. Plant sources of protein are always
incomplete sources of protein. They lack all the essential amino acids. The only way to make them complete is to introduce another food containing the missing amino acids into the meal. Animal protein on the other hand is always complete and always contains all and usually a much higher concentration of the necessary amino acids for the body to grow and develop.
The amino acids in animal protein are much more useful to humans. Scientists havestudied the bodies. ability to make use of the amino acids found in many protein sources.Proteins are rated on a scale of 1 . 100 (the latter being the best) to determine their B.V.
(biological value First, on the list scoring a perfect 100 is egg whites from chickens. The vast majority of all other animal derived protein sources fall in closely. Protein sources from plants then show up on the list behind all animal protein sources. This is due to substances in the legumes that cause them to pass through the digestive system without allowing the protein to be absorbed. The inability of our body to digest the protein makes it completely useless many times.