Kraft Foods recalled 12,553 cases of Post LiveActive Mixed Berry=2 0Crunch Cereal with the "Best when Used By" date of 17DEC08 because a small number of boxes may contain tree nuts (almonds, pecans and/or walnuts), and no nut ingredients are declared on the label. The Post LiveActive Mixed Berry Crunch Cereal has a UPC code of 00430000238900 and comes in a 13-oz retail carton. People who have an allergy or severe sensitivity to tree nuts run the risk of serious or life-threatening allergic reaction if they consume these products. The Mixed Berry Crunch Cereals were sold in stores nationwide. At the time of the revall, the company announced that its review confirmed the presence of nuts in samples sent for testing after it received one consumer report of an allergic reaction.