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Protein Preservation
Dried fish was nearly pure protein—concentrated nutrition in compact, stable form. The drying process removed water but not protein, creating food that was pound-for-pound more nutritious than fresh fish.
This concentration mattered in survival context. A small quantity of dried fish, rehydrated and cooked, could sustain someone through hard labor. The lightweight, compact nature meant it was ideal travel food for traders, raiders, explorers—anyone who needed maximum nutrition for minimum weight and bulk.
Vitamin Concerns
The drying process destroyed some vitamins—particularly vitamin C, which degraded during extended drying. This was real concern during winter when dried fish might be primary protein source and fresh vegetables were unavailable.
The Norse addressed this through dietary diversity. Preserved berries, sauerkraut, some preserved root vegetables provided vitamin C. Spring greens were eagerly consumed when they became available. The diet was not perfect but it worked well enough to prevent widespread scurvy in populations that were primarily fish-dependent.
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