(NewsNation) — The Food and Drug Administration (FDA) has escalated a recent nationwide recall of 64,800 pounds of butter to a higher risk level.

The risk classification for one of Bunge North America Inc.'s butter products was raised to Class II, which is the second highest warning level, due to an ingredient not listed on the food packaging: milk.

Milk is one of nine major food allergens, according to U.S. food safety laws, along with eggs, fish,........

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