Buttermilk and potatoes can get you close to 100% nutrition. Plug 4 large potatoes and 6 Cups of whole buttermilk into a site like Cronometer. 2000 Calories an

Buttermilk and potatoes can get you close to 100% nutrition. Plug 4 large potatoes and 6 Cups of whole buttermilk into a site like Cronometer. 2000 Calories and 100+% of everything but Vitamins E and K, which you might get from foraged greens.