The FDA defines a Class 1 recall as “a situation in which there is a reasonable probability that the use of or exposure to a violative product will cause serious adverse health consequences or death." Braga Fresh,

Braga Fresh, based in California, issued a product warning for Marketside Broccoli Florets, the FDA announced last year. It's now labeled deadly.

Some packages of Walmart-sold broccoli florets have been recalled by its manufacturer. The FDA has designated the recall as a Class I, the most serious category.