Jo Frost is minding more than just manners these days.

Having been diagnosed with anaphylaxis , a severe reaction to allergens that affects the entire body, the Supernanny alum is very careful about her surroundings. After all, as she put it, "It's very life-threatening and very dangerous for me if there are nuts."

"I've ended up in hospital having anaphylactic shock," Jo told E! News’ Francesca Amiker in an exclusive interview. "So, it is about being very cautious and diligent in making sure that you are keeping yourself safe."

And that means going through food packaging and restaurant menus with a fine-tooth comb, as well as advocating for herself in places where nuts are served—even if it rubs other people the wrong way.

"I was really appalled by the behavior in America w

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