Once the darling of Wall Street, Whole Foods Market spent much of the last 18 months out in the cold as it witnessed sales and profits slide in the face of the economic downturn. However, the company's stock surged to a two-year high yesterday (13 May) after the natural and organic retailer reported strong sales and profits growth. With the economic outlook brightening, it seems Whole Foods is beginning to witness something of a renaissance. Katy Humphries reports.