ENTERTAINMENT
04/07/2011 07:20 am ET | Updated Jun 07, 2011

Matthew Morrison's Diet Secret: 3 Days Of Nothing But Sweet Potatoes

Matthew Morrison is known for his ripped physique -- but how does he do it?

The Glee star, 32, who shows off his washboard abs in a series of beach photos in a recent issue of Details, also reveals a slightly unusual diet secret.

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