Clueutility$0.13Clue is the closest token equivalent in terms of being a low-cost artifact token that can be sacrificed for value, though it draws a card instead of gaining life.
Treasureramp$14.59Treasure is another generic artifact token with a sacrifice-based value conversion, turning the token into mana rather than life.
Bloodutility$6.67Blood is the nearest new token type with an artifact token identity and a sacrifice-based benefit, trading filtering for life gain.
Candy Trailcard_draw$0.56Candy Trail closely mirrors Food's life-gain theme and is a cheap artifact that can be sacrificed for card selection, with an additional life gain on entry.
Golden Eggramp$0.24Golden Egg is a low-cost artifact that can be sacrificed for immediate value and also helps fix mana, while incidentally gaining life on sacrifice.
Ichor Wellspringcard_draw$0.97Ichor Wellspring is a budget artifact value piece that replaces itself when sacrificed or removed, serving a similar disposable artifact role.
Chromatic Starutility$0.33Chromatic Star is a cheap artifact cantrip that provides value when sacrificed, functioning as a versatile expendable token-like artifact.
Lembascard_draw$1.73Lembas is one of the closest direct analogues to Food, being an artifact that can be sacrificed for life gain and later card selection.