Mayor Henrietta Davis visits the King Open School salad bar during last year’s Food Day. (Photo: City of Cambridge)

The city is asking residents to hurry and nominate their “food hero” to be honored Oct. 24, the third annual nationwide celebration of Food Day.

The deadline for nominations is Monday.

The form for Food Hero can be downloaded as a PDF here, printed and brought to the mayor’s office at City Hall, 795 Massachusetts Ave., Central Square, or a nomination can be e-mailed here.

Mayor Henrietta Davis, whose office is soliciting the nominations, explained the concept, saying a food hero could be someone who:

• helps promote healthier diets and/or access to healthier food
• supports local farms, gardens or urban agriculture
• works to reduce hunger or fights for food justice
• supports sustainable agriculture or fishing
• fights for better working conditions for food workers or farm workers

Nominees can work in city schools, own a business, be a chef, a student, a food writer or educator, Davis said.

“It can be someone who has done food hero work for years or is just getting started. It can be anyone who helps make food better for all of us,” Davis said.

Food Day highlights healthy, affordable and sustainably produced food and serves as a grassroots campaign for better food policies. For information, call the mayor’s office at (617) 349-4321.