JOHN HARVEY KELLOGG'S INVENTION OF CORN FLAKES REALLY CAUGHT ON.
KELLOGG'S CORN FLAKES REMAINS THE MOST POPULAR CEREAL EATEN IN AMERICA, YEAR IN AND YEAR OUT.
BUT KELLOGG HAD ONE OTHER BIG BRAINSTORM IN HIS LIFETIME.
THIS ONE NEVER QUITE CAUGHT ON.
WHAT WAS JOHN HARVEY KELLOGG'S OTHER BIG IDEA?
YOGURT ENEMAS.
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