The naturally occurring high vitamin content, including vitamins A, E and F, provides ongoing nourishment. (me.palmers.com)
It is true that cooking may reduce the amount of vitamin content in some vegetables, but vegetables are hard to digest and many people have trouble absorbing the nutrients. (tendergrassfedmeat.com)
On the other hand, cold temperatures and freezing have little effect on vitamin content, and air or sun drying preserves or even enhances nutrient content. (westonaprice.org)