First off, it's refreshing to see someone posting something intelligent and well-considered in this topic so thank you
JesseG88":1j1l27jh said:
Actually, animal products do contain all the necessary nutrients. The problem is that people tend to forget to include parts of the animal other than the muscle meats. If you remember to also consume the organs (especially liver, which contains vitamin C), fat, and bone marrow, that a fully carnivorous diet will provide all necessary nutrition. Virtually all primitive people who eat animal products consume the organ meats and the fat. To deal with the problem of liver having all sorts of toxins, simply eat organic liver from pasture raised, free range animals.
I hadn't considered it from that angle as it's not something that your average person would do. I am willing to say you may be correct, but I would expect that it would take not only a variety of organs but a variety of animals to satisfy all human dietary needs; not all animals, especially common livestock, have all the same needs as we do. I would like to see more evidence in that regard. Interesting point though.
Where are there any 100% vegetarian tribes?
See Sixty's post above for that one. I can cite a few things if you want me to go to the effort of digging for info but I don't think it's necessary. Also of note, many religious and spiritual groups are entirely vegetarian, especially in the priesthood, notably at least some Hindu and Buddhist sects as well as a handful of pagan/"New Age" groups. This is not exactly related to your question but as they predate modern society I think it's applicable.
I've read about that kind of thing, but from what I've read, the carnivorous natives do not have any "special adaptations"; their digestive systems are functionally and biologically identical to our own.
They have symbiotic relationships with intestinal fauna and genetic adaptations that are conducive to those relationships similar to people who have lactose tolerance, which is not common outside people of European descent (and probably a few other cultures who have had relationships with cows for thousands of years). It's not impossible for anyone else to gain them, I don't imagine, but as these relationships are usually started at an early age and cultured throughout life.
There is even a story of a couple of white men who, as a result of an expedition gone awry, ended up living with a tribe of carnivorous natives for eleven years. The white men ate the same food as the natives but stayed in excellent health. Eventually, they were able to get back home, and they carried out a scientific experiment in a hospital to see if an all meat diet would be possible down south in an urban environment. They found that it worked amazingly well. Here's the link to the story:
http://www.biblelife.org/stefansson1.htm(Please ignore the Bible Life in the title. Trust me, there's nothing religious in that particular story.)
Sorry to say I'm tired and don't feel like reading that story right now but I will try to remember to get back to it. Until then I won't comment except to say it sounds interesting
The connection between dietary cholesterol and heart disease has been shown to be shaky at best, or downright fraud at worst. There are lots of books about that subject, and they cite many scientific studies which show cholesterol isn't bad.
Here I wholly disagree, except on the point that cholesterol isn't bad. Cholesterol is vitally important to the body; however the body like I have said before produces all it needs from fats. The plain fact of the matter is that plaque in the blood vessels which results in reduced blood flow to and from the heart is composed of cholesterol; that this plaque does not and cannot build up without an excess of cholesterol in the diet; that without this buildup a majority of heart attacks can be avoided. People who have low cholesterol diets, such as vegetarians, vegans and people who simply moderate their consumption of cholesterol have dramatically reduced rates of heart disease, this has been shown in hundreds if not thousands of clinical studies.
Any and all research into how and why exactly it builds up beyond that is irrelevant to the point and dodging the issue if it concludes simply that a high-cholesterol diet is safe or healthy. There have been some studies that show you can balance a diet around high cholesterol consumption by reducing consumption of other foods that increase plaque buildup, and that there are different kinds of cholesterol that have different accretion rates, and so on. This also, imo, is irrelevant to the discussion of whether one should reduce cholesterol intake if he has extremely high cholesterol rates, especially combined with other risk factors; I challenge you to find a licensed dietitian that will recommend a person with a family history of heart disease eat bacon bacon cheeseburgers every day to improve his health.
Also and finally, while I admit it's not entirely fair or a logical attack, I have found that many of the studies promoting the "eat a couple cheeseburgers, it's okay!" line of thinking are unsurprisingly sponsored by the beef, dairy and egg industries and are contrary to similar studies done by objective, disinterested sources such as the FDA and the American Heart Association. This is sort of similar, imo, to all the studies sponsored by the tobacco industry that found over and over again that there was no link between cigarette smoking and lung cancer; they have a product to sell and a public image to maintain. While this is perfectly understandable one has to occasionally question the source.