CNN Health

Every day, 17 people in the US die waiting for an organ. CNN's Dr. Sanjay Gupta meets the scientists -- and the genetically modified pigs -- that could help solve the organ crisis. It's a provocative idea, not without ethical questions about our relationship to animals and genetic manipulation, but some scientists and doctors say it's a necessary solution to a life-or-death problem.

Brace yourselves, America: Many of your favorite foods may contain bits and pieces of creatures that you probably didn't know were there.