As the healthy-food trend sprouts, so does United Natural Foods, a distributor of 35, 000 natural and organic products.

FORBES: Food Markets

Sysco competes with such companies as United Natural Foods, and reports from grocery chains like Supervalu and Whole Foods can offer some guidance on its performance.

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Among the largest underlying components of IWM, in trading today United Natural Foods Inc. ( NASD: UNFI) is up about 1.6%, Dril-Quip, Inc. ( NYSE: DRQ) is up about 2.1%, and Ocwen Financial Corp. ( NYSE: OCN) is higher by about 0.9%.

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United Natural has worked with Whole Foods for a decade.

FORBES: Food Markets

The first bagged salads in the United States were introduced in 1986 by Natural Selection Foods--the same company that has recalled its spinach--under its organic Earthbound Farm brand.

FORBES: Magazine Article

United Natural of Dayville, Conn. is the primary distributor to Whole Foods and Wild Oats Markets, the nation's first- and second-largest hyperhealthy chains.

FORBES: Food Markets