I see that the old bugbear of 'seeing' only what fits into one's world view still holds strongly amongst some of those responding to my post. I will attempt to clear things up a bit.
My website is: www.thebear.org
A zero-carb diet is the traditional treatment for diabetes (not a disease) before the development of injectable insulin, first from pigs.
Diabetes is the result of the immune system sensing the widespread tissue damage from insulin, targeting the source cells in the pancreas and destroying them. Insulin resistance type diabetes is the result of the tissues themselves rejecting insulin. Neither form is found in any other animal in nature, man's carnivorous pets fed a grain based diet may also suffer this syndrome.
In the absence of dietary carbs, the body does not need to produce insulin and the diabetes essentially 'disappears'. You will never be told this by a doctor because then you would be free of the need for medical intervention and your daily ration of drugs. All the assorted ills diabetics suffer are actually caused by insulin, cataracts, heart attacks, bad joints, etc. These are the kind of damages done to the tissues by insulin, and the injected kind is a far more powerful damaging agent than the endogenous hormone. Blood monitoring on a zero-carb regime will quickly confirm the stability of blood glucose.
Nowhere in my post do I say 'preprogrammed'. I thought I made it quite clear that a person's eating habits, including the composition of the diet is solely determined by that person's mother between birth (and about 8), the same time all the social skills which make us uniquely human ware acquired.
The name of this website is lowcarber.org,, is it not? A low carb diet is 'extreme' relative to the usual western civilised diet. My diet is just the end point of lowering carbs. My statement was not that it took 'far too much willpower', only that it requires strong willpower and great determination.
I am sure that there are a great many things known by anthropologists that you would find 'impossible to believe', however scientific evidence does not require belief, only knowledge. The composition of the materials found in paleo digs as well as bone composition tests are well known and published, I suggest a search on Google. And check the journals of anthropology in a library.
Vitamins. that is easy, there are virtually no sources of any vitamins to be in vegetation (which is why all vitamin supplements are synthetic), but all are found in abundance in meat. For example no source of A other than animal liver exists. The amount of B complex in 30 gm of fresh red meat is more than can be extracted from one hundred kilos of yeast concentrate- once it was done, but at great expense. C is not the only antiscorbitic substance, since a diet of just red meat prevents scurvy (the Inuit diet).
Moderns live a long time in spite of a wickedly bad diet but it is due to medicine. Most paleo people died either of trauma of various kinds in hunting and war, starvation or disease. Lifespan is therefore not a measure of the effectiveness of diet, as even a lousy one can get you to ~30/40. I think you mean nutritious. It is just plan nonsense to claim that there is any basic difference between individual humans so far as body functions, etc are concerned, the biggest cop up in avoidance is ' is ok for you but everybody's different', so please, let's not go there.
I have eaten nothing but sirloin steaks for months on end, but I do like eggs cheese, many cuts of meat, even organs like liver tongue kidneys and brains (although the Inuit never eat any of them- and most likely neither did the true paleo hunters). Fish and chicken are nice too, in fact I have never 'met' an animal I would not eat. The one meat that needs to e eaten sparingly is liver, which contains a lot of starch (glycogen) and vit. A which is toxic in excess. Excess may be as little as one ounce of the liver of an animal feeding on fish.
Concerning vegetables, there is no 'baby'- it is all just a load of dirty water. Moderns do not eat any raw natural vegetation other than sugary fruit and some difficult to indigestible nuts. All modern veg foodstuff have been extensively modified by selective breeding to reduce to eliminate toxins and still require long cooking, are low in nutrients and cause a growth of harmful bacteria in the intestine, while the fibrous cellulose residues (fibre) scratches the delicate lining and causes mucus and scarring. This reduces nutrition and eventually as you age, this damage will lead to malnutrition even on a good diet. Meat leaves the stomach as a liquid after about 45-60 min, and is totally absorbed in the first foot or two of the small intestine- no scratching and no mucus formation. Human milk is very sweet, hence the 'sweet tooth' is easy to develop if reinforced by lollies as a baby. Without this reinforcement sweets are seldom later sought after. If paleo people actually ate seasonal fruits (quite possible in some places), they ate them where found, no evidence or residue has been found in digs.
The only thing careful about my diet is I don't use salt (a chemical) and I don;t cook the meat much, I make sure I eat a lot of fat. Virtually any meat is ok, even for long periods, it is a matter of personal taste, like- I really like raw oysters and soft shell crabs (and for that matter Aussie mud crabs..)