updated 03/25/2014 AT 8:00 PM ET
•originally published 03/26/2014 AT 1:10 PM ET
When your guy is a talent in the kitchen, it can be hard to resist the occasional carbo-load.
“Like, hello!” she bemoans to PEOPLE. “Carbonara. It’s a killer. The last couple of years since meeting this man have made me gain a couple extra pounds. But it’s all worth it.”
Still, consistent daily workout sessions help the Aveeno global brand ambassador, 45, take the edge off those occasional indulgences.
Aniston, who narrated the first of a series of digital shorts for the Aveeno brand, titled, The Beauty of Nature Active Naturals Oat for Your Skin, aims for 45 minutes of cardio and 20 minutes of yoga or floor exercises.
“It catches up to you, and you take care of it,” Aniston says. “But it’s still fun. It was all in the name of love!”
For much more from the exclusive interview with Aniston, including her romantic rituals with Theroux, pick up the new issue of PEOPLE, on newsstands Friday