Living in north central Florida we have access to water, game, firewood and shelter. We have weapons and ammo for self defense and game gathering plus a quantity of quality hand tools to gather firewood and maintain the property. We have about a years supply of freeze dried food, OTC medicines, bandages and the like. What I don't know or have been able to determine is how much salt to keep on hand. I know we get more than enough salt from the processed food we eat but when (if) the supply chain goes away so does processed food. When I was in the Marines (in the early 60s) they used to issue salt tablets in the hot weather. In the research I have done I can't find a reference to how much salt the body needs. If salt can't be obtained from the environment and the supply chain is broken how far will 60 pounds of salt go? I buy high purity sodium chloride for my salt water pool and although it isn't food grade salt it will do. Is salt available from the environment some way?