The FDA is investigating the death of a 21-year-old woman with a heart condition who allegedly died after consuming a highly caffeinated lemonade from Panera Bread. The lawsuit filed by the woman's family claims that Panera failed to properly warn consumers about the drink's ingredients, which contain more caffeine than a standard can of Red Bull and Monster energy drinks combined. The FDA is gathering information about the incident and is working to determine if the drink was responsible for the woman's death, and if Panera should have provided more information about the drink's ingredients.