Photo: Barnes and Noble

We've been "Ewwing" and "Ahhing" over the outrageously obese eats at This Is Why You're Fat nearly all year (the book cover above will give you a good idea what kind of foods they feature if you've never visited the site), so it was only a matter of time before we asked the brains behind the Website, Jessica Amason, what inspired her to create it.

"I'm always on the Web, so I'm attuned to the new trends," says Amason, editor for BuzzFeed.com and former blogger for AOL's Urlesque.com. "And of course I'd noticed there were sites like Serious Eats and Pimp That Snack that were popping up everywhere. And so it made sense that there should be a one-stop shop kind of site." That's Fit also talked to Amason about her exercise regimen ("I go to a gym and I try to eat pretty healthy, but my motto has always been everything in moderation"), and if her eating habits have changed ("I was an athlete growing up, so I've always been a fairly healthy eater, but I have become very knowledgeable about the crazy fatty foods that are out there.") Read on for her favorite foods from the blog, and if she thinks these meals are really why you're fat.

That's Fit: What's your favorite guilty pleasure?

Jessica Amason: My weakness is baked goods, that's a pretty tough one from me. From the site, though, I think that my favorite is probably either the pizza burger, or the snack stadium. Just because there's real commitment there, those guys know how to go big. Because I know it's my weakness, I try not to indulge all that often, but with the holidays coming up I'm sure I'm gonna go a little crazy and then have to crack down once I get back.

How to live healthfully is no mystery for CSI: Crime Scenes Investigation star Marg Helgenberger. Nope, the 49-year-old actress knows exactly what it takes to keep in fighting shape.

Helgenberger meditates every morning, does yoga twice a week, reads for relaxation, and eats lots of yogurt, fresh berries, fresh papaya, sliced turkey, salad, and cheeses. A typical Helgenberger menu goes like this: Smoothie made with yogurt, rice milk, and fresh fruit, followed by a lunch featuring tuna or turkey sandwich or a salad topped with protein, and then fish or chicken with veggies and salad for dinner.

Guilty pleasures? Yep, she's got some. She loves chocolate chip cookies, Girl Scout thin mint cookies, fried chicken with macaroni and cheese, and a good steak now and then. It's all about moderation and balance for this woman who has a very sensible approach to aging: "I certainly want to look the best I possibly can," she says. "But I keep coming back to this theory that you have to work with what you've got and grow older gracefully."

What are your guilty pleasures? More important, though -- what are your secrets for keeping fit for the long haul?

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