Costco, one of America's largest warehouse retailers, recently alerted consumers to several nationwide product recalls—including warnings classified as potentially fatal. The recalls include pools and food sold by the retail giant, affecting customers across the United States.

The U.S. Food and Drug Administration (FDA) has elevated the risk classification for a nationwide butter recall, now labeling it a Class II recall — the second-highest warning level —due to a potential undeclared allergen.

More than 32 tons of butter have been recalled across the U.S. and in the Dominican Republic due to an undeclared allergen. Bunge North America issued a voluntary recall for 1,800 cases of butter on July 14 according to the FDA and that recall was given a Class 2 risk level where any use of or exposure to the product can “cause adverse health consequences.