Niecy Nash attends Kari Feinstein's Oscars Style Lounge at Mondrian Los Angeles on February 24, 2012. Credit: Rebecca Sapp/

After she got remarried, to electrical engineer Jay Tucker last May, Niecy Nash, 42, made another vow: to overhaul her eating.

"I didn't start out about weight loss. I was very tired and my energy was low," she tells Us Weekly. "This is my second go-around in love, so I want to make sure I'll be around to enjoy it."

Nash turned to nutritionist Stacy Gibson's five-day juicing program (find her on Twitter here) -- consisting of three 16-ounce veggie and fruit juices, about 300 calories each, plus meals of mostly fish and vegetables -- every other week.

"I have more energy to run after our four children," says the 5-foot-3 star of TLC's new reality series Leave it to Niecy, who also dropped 10 pounds. "Weight loss and great skin were a bonus!"