By Christina Wilkie and Jordy Yager - 08/20/09 04:03 PM EDT
The Physicians Committee for Responsible Medicine announced Thursday that the teenager will star in a television commercial urging Congress to require vegetarian options in school lunches. The issue is a timely one; this fall, the House Education Committee will take up the National School Lunch Program as part of the Child Nutrition Act.
The Greenwich high-school student had been a vegetarian for three years when she approached the health advocacy group earlier this year to discuss ways to promote healthy eating. A spokeswoman for PCRM confirmed that Williams was not paid for her appearance.
Viewers may recall another recent Williams family television spot: In December 2008, Montel starred in commercials for The Obama Presidential Coin Collection, a commemorative coin set later revealed to be regular coins covered with flimsy stickers. The coins were pulled from the shelves after widespread complaints.