Are sugar, fructose, grains, manufactured eatable products still in your pantry? Do you consider those as foods? Once we stop thinking those things are eatable, if there is such a word, the problem becomes real food or fake food.
The Inuit did not consider plant eatable. Anglican miniseries had a tough time to convince the starving natives that what they offered, sourdoe and bannock were actually food. Now there are considered to be northern native foods. Perhaps it is time to put grain back on the non food list.