Alison Sweeney here for Run 10 Feed 10 on Sunday

When the runners line up for the Run 10 Feed 10 race on Sunday, Alison Sweeney will be among them.

The popular host of NBC’s “The Biggest Loser,” Sweeney is a fan of running outdoors now, but that hasn’t always been the case. Training for the Los Angeles Marathon in 2012 changed that. “Now I absolutely love it,” she says via email, “because no matter where you are, you only need great music and good running shoes.”

Run 10 Feed 10 is a 10k that will kick off at Diversey Harbor at 8 a.m. For every runner who signs up, 10 meals will go to the needy in the Chicago area. This Chicago race is part of a series of runs across the country that are sponsored by Women’s Health Magazine and the FEED Foundation. Last year’s races raised 1.5 million meals.

Sweeney says the meals raised are what has her lacing up her running shoes. “Every mile I think about how I’m helping make a difference in 10 meals being provided.”

While she’s used to the warm weather of her home base of Los Angeles, Sweeney isn’t letting Chicago’s chilly temps dissuade her. “There’s something very invigorating about running in colder temperatures.”

Besides the race, Run 10 Feed 10 will include guided stretches and yoga. It’s $55 until Sunday (although registration will close if the race sells out). Participants also can raise more money for Feed 10. To find out more about that and to register, go here.