The "muffin top" is caused by a waistband that's too low and too tight. When your tummy spills over the sides of your jeans, you know you're a member of the muffin club.
But, there's good news for muffins everywhere, Stacy says. Waistlines are rising! The ultra-low rise fad is fading fast, and the new mid-rise styles will keep your belly from bulging.