Created by the Gods, Kvasir was the wisest man that ever lived and the source of the fabled Mead of Poetry. The Mead is shared with mankind by Odin, the Allfather himself, who obtained it during a dangerous quest.
Only a good balanced diet could have helped fuel the Viking Age, and that is exactly what the Norsemen had. A surprisingly good diet, significantly better than most of the world had during the middle ages. Learn more here!