Clif Bars Recalled Over Listeria Fears Possibly tainted sunflower kernels have led to approximately 40 recalls since May By Michael Harthorne, Newser Staff Posted Jun 3, 2016 6:57 PM CDT 9 comments Comments Clif Bar is recalling some of its products over listeria fears. (Photo: Business Wire) (Newser) – Clif Bar is recalling three of its products over concerns they're contaminated with listeria from tainted sunflower kernels, Fortune reports. People shouldn't eat Mojo Mountain trail mix bars, Sierra Trail Mix energy bars, and Nuts & Seeds energy bars with best-by dates between this month and 2017. It's unclear how many bars are impacted by the recall. According to CNN, no illnesses have been reported in connection with Clif Bar products. There have been approximately 40 recalls since last month, when SunOpta announced its possibly listeria-contaminated sunflower kernels. The FDA has a full list of the recalled products. Approximately 260 people die from listeria in the US every year.