José Canseco

Anything in overdose will destroy your liver. I mean, look at cigarettes and look at liquor. Cigarettes says on the packet, this will kill you; it will cause cancer; and you're still smoking it.

José Canseco Capas, Jr. (born July 2, 1964) is a former outfielder and designated hitter in Major League Baseball, and is the twin brother of former major league player Ozzie Canseco.

Sourced

• It's done a lot of players a lot of good. And obviously, this drug is a drug where it's dose-related. Anything in overdose will destroy your liver. I mean, look at cigarettes and look at liquor. Cigarettes says on the packet, this will kill you; it will cause cancer; and you're still smoking it.
  • Real Time with Bill Maher, 25 February 2005