Alison Sweeney is busy juggling the role of host for NBC's hit reality series "The Biggest Loser" and the award-winning role of Sami Brady on NBC's hit daytime drama "Days of our Lives" with her off-camera roles as a producer, author, wife and mother.

Since making her debut as host for Season 4 of "The Biggest Loser" in 2007, Sweeney has joined the hit reality series in transforming the lives of show contestants and television viewers worldwide. Having openly discussed her own weight loss struggles, Sweeney was thrilled when the show producers asked her to join the show. Since then, Sweeney has graced the cover or been featured in magazines, including People, US Weekly, OK!, Pregnancy, Complete Woman, Health, and many more. Her talk show appearances include "The Tonight Show with Jay Leno," "Ellen," "Today," "Rachel Ray," and segments for "Access Hollywood.

"Sweeney is also an accomplished author with her next book "The Mommy Diet," to be released in January 2011. The book will reveal the "diet" of nutrition, fitness and self-care that women can follow to look and feel fantastic - before and during pregnancy, and after giving birth. "The Mommy Diet" focuses on ways to get and keep physical and mental health, while offering ways to slim down after having a child in a positive, attainable way.

No stranger to the camera, Sweeney began her acting career at age four. At 16 years old, Sweeney joined the cast of Days of our Lives, and in her 17+ years as Sami Brady, she has transitioned from a rebellious teenager to a devoted single mother with many detours along the way. Sami has tackled a variety of controversial storylines, including bulimia, date rape, teen pregnancy, and capital punishment.

Sweeney's performance has garnered numerous awards, including The Soap Opera Digest Awards four times (1986, '98, '99 and 2001) for the role of Favorite Villain; and the award for Favorite Good Girl in 2001. Sweeney also won the award for America's Favorite Villain at the 29th Annual Daytime Emmy Awards.

Her additional television credits include guest-starring roles on "Mercy," "Las Vegas" and "Friends." On the reality front, she competed in back-to-back seasons of "Iron Chef America."

Recently, Sweeney tackled the role of producer, and is currently developing several reality shows. She is also busy working with Feeding America since joining their Entertainment Council, and will again co-host the MDA Telethon in September.

She currently resides in Los Angeles with her husband Dave, a California Highway Patrol officer, their five-year-old son Ben, and one-year-old daughter Megan.