A Canadian man and his wife were shocked to discover that a bottle of cranberry juice they ordered online included a hidden warning that could have had deadly consequences—an unexpected allergen label reading "may contain shellfish."

The millennial man, who goes by u/hi2colin on Reddit , told Newsweek that his wife, who has a shellfish allergy, narrowly avoided drinking the beverage, thanks to a chance glance at the fine print on the bottle's label.

"Tried a new brand of cranberry juice. Turns out it might kill my wife," the Toronto-based man wrote in a post to the platform that has since gone viral, racking up more than 60,000 upvotes.

The cranberry juice came from Walmart 's Great Value brand and had been substituted during an online grocery order.

"We have a new baby, and we

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