That's interesting, as on the Nepal side you get only Dahl Bhat (rice and lentils), with maybe some pickles and luxury, a fried egg!
However in Mendoza, Argentina near to Aconcagua, you are inundated with beef steak and red wine, which sounds great, but after a few days of that you're feeling pretty heavy!
Nepal has much more agriculture than Tibet given that much of their land is much lower (Kathmandu is 1,400 meters, Lhasa is 3,655 meters). So most Nepalese are Hindu and can be vegetarians, while vegetarianism simply can’t exist in traditional Tibet (you won’t survive, so even Buddhist monks eat meat, incidentally the one thing Tibetans most like about being apart of China is easy access to agriculture imports).
South America I wonder if it’s more about converting nutrient poor jungles to grazing land?
However in Mendoza, Argentina near to Aconcagua, you are inundated with beef steak and red wine, which sounds great, but after a few days of that you're feeling pretty heavy!