One minute you're happily munching; the next, your snack is all over the news. Don Schaffner, Ph.D., professor of food science at Rutgers University, offers the lowdown on food recalls:

If you consume food that's just been recalled, check the batch info on the label and call the product's toll-free number or contact the shop manager. Recalls cast a wide net, and you may not be affected.

If your batch is involved, don't schedule anything strenuous for the next 24 to 72 hours, when symptoms (nausea, diarrhea) may arise. Drink lots of fluids, and have your doc's number handy just in case.

Be wary of hidden ingredients, like sliced pistachios in biscotti.

Check fda.gov for updates.

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