Credit: Tim Ogier/ABC Television Group © 2011 Disney Photo: Jennifer Lopez and Pitbull Team up at the American Music Awards on November 20, 2011

Having a body like Jennifer Lopez’s doesn’t come easily, and now that the newly single mom is juggling twins and judging duties while jetting across the country with American Idol, you’d forgive her for letting her diet slip once in a while.

Yet somehow, even at 42 and with all that going on her life, J.Lo never seems to gain a pound, forcing us to repeatedly scream at the TV, “How does she do it?” Never was that more apparent than at the American Music Awards on November 20, where Jennifer wowed in a sparkling nude bodysuit that left very little to the imagination.

In the dream of one day having a fab figure like Jennifer, Wetpaint Entertainment caught up with celebrity nutritionist Haylie Pomroy of East West Essentials to get the inside scoop on the American Idol judge’s favorite cleanse.

Having gotten hooked on the program when she was pregnant, Jen now does Haylie’s Five-Day Optimal Cleanse a few times a year to flush out her body and reset her diet goals, Pomroy told Wetpaint Entertainment.

The powerful cleanse is a nutrition-based detox program that combines targeted foods and rice-based detox shakes. While it sounds complicated, Pomroy offers step-by-step instructions, making it foolproof to follow.

It also includes yummy and wholesome recipes such as Garlic Chicken Stir Fry with Quinoa, Peppers and Basil, White Bean Kale Soup, or the catchy Just-Got-Home-From-Work Quick Lentil Soup.

Jennifer is such a believer of the program that she did the cleanse when she was preparing for get camera-ready for American Idol, revealed Pomroy. Instead of starving the body and putting it into shock, it actually gives you the nutrients that you need and clears the body of any toxins it is holding onto.

Okay, so it will clean out your system nicely, but will it give you J.Lo’s famous booty? Alas, some things in life are simply out of our reach.