LOS ANGELES (CBSLA.com) — A Chicago-based company is voluntarily recalling granola bars over listeria concerns.

The U.S. Food and Drug Administration said the recall includes a small quantity of Quaker Quinoa Granola Bars made by the Quaker Oats Company.

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According to the FDA, an ingredient supplier was found to have distributed sunflower kernels that may be contaminated with listeria monocytogenes.

“While the vast majority of potentially affected Quaker products were withheld from ever reaching retail shelves, the products being recalled were distributed nationwide,” the FDA said in a news release.

The recalled products include:

• 6.1 ounce boxes of Quaker Quinoa Granola Bars Chocolate Nut Medley with UPC code 30000 32241 and best before dates of Oct. 16, 2016 and Oct. 17, 2016;

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• 6.1 ounce boxes of Quaker Quinoa Granola Bars Yogurt, Fruit & Nut with UPC 30000 32243 and best before dates of Oct. 10, 2016 and Oct. 11, 2016.

Listeria infections, according to the FDA, can cause short-term symptoms such as high fever, severe headaches, stiffness, nausea, abdominal pain, and diarrhea in those who are healthy. Among pregnant women, listeria infections though can cause miscarriages and stillbirths.

No illnesses have been reported to date.

Those who purchased the products are urged to return them to the store where they bought them for a refund or discard them.

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Click here for more information or call (800) 856-5781.