Waitrose has been voted best supermarket by readers of the women's magazine Good Housekeeping.
The chain triumphed in the publication's Food Awards, in which Tesco was named best online grocer.
Green & Black's won three categories - best comfort food, favourite Fairtrade product and best organic product available in a supermarket. Best time-saving ingredient was Dolmio pasta sauce, while Lea & Perrins' Worcestershire Sauce was named 'ingredient you couldn't live without'.
The Marine Stewardship Council picked up an award for outstanding contribution to food for its work preserving world fish stocks.