People are doing the 12-3-30 workout to lose weight, and the transformations are jaw-dropping. An expert breaks down the benefits.
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Alexa Mellardo, Author at Eat This Not That — Page 6 of 39
I did the 12-3-30 treadmill workout for a month — here's my
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A no-sweat, full body workout for a busy December
People Are Sharing Their '12-3-30' Workout Transformations