In Association for Molecular Pathology v. Myriad Genetics, Inc., the Supreme Court ruled that synthetically created DNA is patentable, but the isolation of unaltered gene sequences is not.
AMA J Ethics. 2015;17(9):849-853. doi:
10.1001/journalofethics.2015.17.9.hlaw1-1509.
State laws prohibiting sodomy were on the books throughout US history until struck down by the US Supreme Court, which argued in Lawrence v Texas (2003) that the state cannot criminalize private sexual conduct.
Both bans on unhealthful foods and warning label requirements face strong legal opposition from industry and ignite furious public debate about the role and limits of government intervention in American lifestyles.