The ads, which break this week, will run on TV, radio and as press executions.
They are designed to highlight the special relationship between the retailer and food.
The TV ads feature real shoppers speaking to the camera about different M&S recipes. The endline reads: "Marks & Spencer Food. Feeds your heart." The press ads show various M&S dishes and use the same endline.
The ads were written by Mark Roalfe and Pip Bishop with art direction by Roalfe and Chris Hodgkiss. The TV ads were directed by Lucy Blakstad through Brave Films. The press ads were shot by Jonathan Lovekin. Walker Media handled the media.
The press ads will appear in magazine supplements and titles including Hello! and OK! The TV spots will run on terrestrial and satellite TV during primetime programmes.