Fitness is not an option. It's part of my job.

I was definitely one of those people who fell for the fat-free cookies and chips that are loaded with sugar and calories.

The number one mistake is giving pets table scraps. I made the mistake thinking I was showing my dog love by giving her food and treats. You see a tiny 4 oz. piece of cheese, but for a Boston Terrier like mine, that's like one and a half hamburgers. That's unhealthy.

Our pets rely on us entirely for their nutrition. So if you're making your own judgments, that could lead to a mistake. At the same time, we have more control over our pet's diet than we do with our children or with ourselves, so your vet can tell you what is appropriate for your dog and you can assign them that.

One of the things I like best about 'Biggest Loser' is being around people who are trying to make the right choices. When you feel defeated about your weight and your health, like there's no hope, and you still make the choice to fight for it, to make the change happen no matter what people say or think, that's inspiring to me.

When I saw contestants fighting for their lives on 'The Biggest Loser,' I realized I just wanted to be healthy - to have fun playing soccer with my son or teaching my daughter to shoot hoops. Then it was so much easier to say no to carbs, soda, or dessert, and the weight just came off.

I'll have wine or a piece of cake once in a while, but I don't look at it as sliding backwards, even if I go a whole week without working out. I don't dwell on it and beat myself up - I just try to have a healthier day tomorrow.