in 1993 the fda published new regulations mandating the inclusion of a nutrition facts label on most packaged foods. originally the fda had proposed replacing the percent u.s. rdas with percent daily values based on the 1989 rdas but the dietary supplement act of 1992 prevented it from doing so. instead it introduced the rdi to be the basis of the new daily values. the rdi consisted of the existing u.s. rda values (still based on the 1968 rdas as the fda was not allowed to change them at the time) and new values for additional nutrients not included in the 1968 rdas.