What is the most important food source for survival?

Answer High Energy Fats

Fats are hard to come by in a survival situation and extremely valuable as they serve as energy stores for the body. 1 gram of fat contains 9 calories where as protein and carbohydrates only contain 4 calories per gram. With the increased caloric burn of chopping wood, building shelter, hiking etc...Fat is the ideal food source to keep us mentally and physically energized.

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