Certainly are people in the third world without a regulary access to animal protein, but also there are normally a lessd lifespan as in the western world. Apart, there is a huge difference between not a regulary access to animal protein and never. Most of the people in these countries are also include insects and other recources in their diet, even in few occasions. This is just what a healthy diet include, which we don’t have in the western world with meet for every day, which is also not a healthy and balanced diet, as I mencioned before (depending on the climatic conditions, and activity. A Inuit with -30ªC need more fat and animal products as the people in Africa with 40ºC, also a worker in a fundition more than a officinist)