Farmers' market frequenter, maybe

• Patron of a farm-to-table restaurant, maybe
• Farm-to-table advocate
• One inclined to patronize a farmer's market
• Typical farmers' market patron
• Farm-to-table consumer

Wiktionary Word definitions in Wiktionary
n. One who tries to eat only locally grown foods.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
one who eats only locally grown or raised food, by 2001, from local + ending abstracted from carnivore , etc., ultimately from Latin vorare "to devour" (see voracity ).