I think the fad from a few years ago that was known as Atkins is a reminder of what the survivalists have known for thousands of years. The body can live off of protein and fat. Pemmican (jerked meat ground and combined with fat) is an excellent survival food. Drying meat is not a difficult process and long as you keep your meat thin (1/4 inch or less), and dry it in the sun or near a fire for 2-3 days. When making a kill for food, it is important that you strip the carcass of its body fat and keep the fat. Whether it be deer, elk, cow, bison or moose you can simmer and drain off the impurities which leaves you with tallow when cooled. Pig, bear, or coon fats are too soft and result in lard. Grind your dried meat into a powder and mix it with your cooled tallow (not solidified but not hot either) Mixing with hot tallow will result in cooking the meat which will spoil it quickly and poison you. Coat the meat with the tallow. The result is Pemmican. A high protein, fatty food which can sustain the body for a long time. As long as you keep this dry, it will be preserved practically forever.