RJ wants the main build thread to be for stats, so let's use this one for discussing the build. I don't want to try to overcomplicate things, but wouldn't it be a good idea to throw in a general "nutrients" variable to go along with carbs, lipids and proteins? The jar of vitamins would be an easy way to add "nutrients", and would give them more of a purpose. Spinach would be high-nutrient, and celery would be low-nutrient, for example. Food and nutrition is such a complex thing, it will be interesting to see how this all works out.