In regards to nutrition in Dead Matter, there are two basic needs, Hunger and Thirst. When they are satisfied, you’re good. However when eating healthy, you’ll get some bonuses, this is what we call Nutrition System.
Vitamins, Proteins, Carbs and so on. If you satisfy all your requirements for optimum health, you’ll get some bonuses. On the flip side, there is no punishment for not doing so. It is an optional system you can take advantage of.