nutriment, nourishment, nutrition, sustenance, aliment, alimentation, victuals (noun)

a source of materials to nourish the body

support, keep, livelihood, living, bread and butter, sustenance (noun)

the financial means whereby one lives

"each child was expected to pay for their keep"; "he applied to the state for support"; "he could no longer earn his own livelihood"

sustenance, sustentation, sustainment, maintenance, upkeep (noun)

the act of sustaining life by food or providing a means of subsistence

"they were in want of sustenance"; "fishing was their main sustainment"

sustenance (Noun)

Something that provides support or nourishment.