MICHAEL PHELPS isn't just the most decorated Olympian in history . . . he's also the Fittest Man of All Time . . . according to "Men's Health" magazine, which ranked the Top 100.  Here's the Top 5 . . .

#1.)  Michael Phelps

#2.)  Bruce Lee

#3.)  Arnold Schwarzenegger

#4.)  Jack Lalanne

#5.)  Herschel Walker

For the full list click on the photo below.....