A recent advert by Lincolnshire Co-operative offers 5 times dividend on fairtrade products, fresh fruit and vegetables in the 5 portions a day recommended list (you must remember that national promotion), and food produced locally. As Lincolnshire is a big growing area for England - think potatoes, leeks, and green stuff there is probably plenty to go at. An innovative co-operative dividend scheme.
Lincolshire Co-op (couldn't find this mentioned on the website)