Food is a resource item found in Endzone and a building category.
Food is produced by:
After building a Cultivated Field or Orchard you can choose between the Seeds randomly available, the more diversity you have the better for your Settlers Health. You can find new seeds by completing Side Tasks in the Forum, Expeditions or Trade Deals in the Trading Post.
A Gatherer's Cabin will harvest in a designated field of work, which you can move, You'll find more food to gather in moisture rich Forests and none during periods of drought, plants will regrow after rain. The Fishing Hut needs to be placed along a lake but will not produce during drought, the Hunting Lodge however produces at all times and you need to place the field of work on animal herds.
The Kitchen can produce 100 Processed Food using only 10 Food and 10 Water, this is a more efficient means of generating food and Settlers won't require as many varieties of Food for a healthy diet when they access to processed Food items.