Earlier quoted context omitted.
I find that there's actually a good bit of research-based and evidence-based thinking going over these "vast piles of medical research" you mention and finding that they don't really support the current accepted dogma of nutritional recommendations, and that indeed this research is pretty flimsy itself, if you were to believe Taubes, Lustig, Cordain, Eades, others, and tellingly now there is an alarming increase in o…
I'm no paleo advocate, but your statistics are totally wrong. Denmark is the world leader in per-capita meat consumption, followed by New Zealand and Luxembourg. The USA is number 4. Canada is in the top 10, but the UK and Mexico are not. Mexico isn't even in the top 30. Likewise, consider two of the main diet-influenced lifestyle diseases: heart disease and diabetes. Countries in Eastern Europe are all ahead of the…
United States Leads World Meat Stampede http://www.worldwatch.org/node/1626
It's also worth pointing out that S. Koreans have a longer life expectancy than people in either the US or Denmark, despite being less economically developed and have a much smaller social system. Note that the countries topping the life expectancy rankings, Japan and HK are both big rice eaters, and that #3, Iceland gets most its meat as fish.
That said, after reading your post and once again researching the statistics, I'm absolutely shocked how quickly rich countries other than the US have been increasing their meat consumption. I couldn't find lists that looked at total consumption of animal products, but the rankings in terms of meat itself have changed a lot. I'm still 100% sure that eating rice at breakfast, lunch and dinner is part of the traditional Japanese diet, and that they out-live the heavy meat/cheese/butter eaters in other rich countries.