Minimum cost diet that satisfies Nutrition requirements.
Can be tackled using Linear programming
Corrent "Oatlent" implementation began by Paco Criado
aka Simplex Diet (simplexdiet.guillefix.me)
https://fnic.nal.usda.gov/fnic/dri-calculator/
https://www.completefoods.co/diy/wiki/complete-nutrition
Vease tambien Mana (Bible), Japari buns (Kemono Friends; they are supposed to be nutritionally complete, and very tasty!)
https://manga.tokyo/columns/anime-recipes/how-to-make-the-japari-man-from-kemono-friends/ ^ ^
It would be quite nice to have a physical place to buy nutritionally complete/optimal cheap products (Huel-based products, Mana, Japari buns, Simplex Foods, MealSquares)
https://huel.com/pages/cooking-huel
https://www.completefoods.co/diy/recipes – https://www.completefoods.co/