ABC: Federal food safety officials warned Monday that consumers should stop eating all foods containing pistachios while they figure out the source of a possible salmonella contamination.

Still reeling from the national salmonella outbreak in peanuts, the Food and Drug Administration said central California-based Setton Pistachio of Terra Bella Inc., the nation's second-largest pistachio processor, was voluntarily recalling a portion of the roasted nuts it has been shipping since last fall. A Setton spokeswoman said that amounts to more than 2 million pounds of nuts.

"Our advice to consumers is that they avoid eating pistachio products, and that they hold onto those products," said Dr. David Acheson, assistant commissioner for food safety. "The number of products that are going to be recalled over the coming days will grow, simply because these pistachio nuts have then been repackaged into consumer-level containers."

Two people called the FDA complaining of gastrointestinal illness that could be associated with the nuts, but the link hasn't been confirmed, Acheson said. Still, the plant decided to shut down late last week, officials said.

The recalled nuts represent a small fraction of the 55 million pounds of pistachios that the company's plant processed last year and an even smaller portion of the 278 million pounds produced in the state in the 2008 season, according to the Fresno-based Administrative Committee for Pistachios.

California alone is the second-largest producer of pistachios in the world.

According to the company's Web site, Setton Pistachio is in the corporate family of Commack, N.Y.-based Setton International Foods Inc. The company sells nuts, dried fruit, edible seeds, chocolate and yogurt-coated candies.

The FDA learned about the problem last Tuesday, when Kraft Foods Inc. notified the agency that it had detected salmonella in roasted pistachios through routine product testing. Kraft and the Georgia Nut Co. recalled their Back to Nature Nantucket Blend trail mix the next day.

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