Clif Bar trail  mix bars are the latest product to be recalled by SunOpta because its sunflower ingredient may be contaminated with listeria.

Tribune Media Wire reported that the Clif Bar announcement follows nearly 40 separate recalls for the same reason— most recently, Quaker Quinoa Granola Bars and Kashi Trail Mix Chewy Granola Bars. The sunflower kernels in the recalled products were manufactured in SunOpta’s Crookston, Minnesota, facility. SunOpta is based in Edina, Minnesota.

The affected Clif Bar items are Clif Bar Nuts & Seeds Energy Bars, Clif Bar Sierra Trail Mix Energy Bars, and Clif Mojo Mountain Mix Trail Mix Bars, according to the Emeryville, Calif.-based company’s voluntary recall notice. “Best buy” labels for the products range from June 2016 through January, March and February 2017, respectively.

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Items in the recall also include Planter’s sunflower kernels, Trader Joe’s packaged Broccoli Slaw & Kale Salad with White Chicken Meat, Sunflower Seeds, Cranberries, And A Sweet & Spicy Vinaigrette, as well as other trail mix and protein bars sold by various companies at retailers like Walmart, Publix and Great Value.

According to the Centers for Disease Control and Prevention (CDC), exposure to listeria can cause serious and life-threatening illness in individuals who are immunosuppressed, young or elderly. In pregnant women, it can cause birth complications.

Visit FDA.gov for a full list of the affected products.