Here, the purely vegetarian menu features homemade smoothies, juices, sandwiches and soups made from seasonal ingredients, with an additional healthy kick courtesy of super foods such as acai or acerola.

BBC: Eating vegetarian food in Paris

Prof Sanders agrees that fruit and vegetables are not "super foods" that protect against cancer but - like many nutritionists - takes the view that it is better to fill up your plate with vegetables than a lot of the other high-calorie food it's so easy to snack on.

BBC: Five-a-day campaign: A partial success

And Whole Foods puts a premium on products that are grown or produced locally (read: super fresh).

CNN: America's healthiest grocery stores