The nation's leanest state is taking its time as it considers a proposal aimed at getting junk food out of schools.

A Colorado House committee was expected to discuss a bill that could become the nation's toughest regulation meant to keep trans fat away from students, but lawmakers delayed the hearing without explanation.

The bill would forbid any trans fat in school food -- not just what's served in cafeterias. The measure would apply to vending machines, after-school bake sales and popular "a la carte" items on lunch lines such as ice creams or pizza.

The proposal would make it so that any such treats would have to be produced without artery-clogging trans fats. Legislators on Thursday delayed the hearing until at least next week.

(Copyright 2012 by The Associated Press. All Rights Reserved.)