Abstract In the wake of the extensive scrutiny of the human rights credentials of the new Member States under the EU pre-accession conditionality, which itself was riddled with paradoxes, this article considers a rather unexpected irony thrown up by the accession of these countries. It is that the post-communist constitutional courts, which have been applauded for vigorous protection of fundamental rights after the fall of the Communist regime that was marked by nihilism to rights, have come rather close to having to downgrade the protection standards after accession, due to the new constraints of supremacy of EC law. The article will consider the sugar market cases of the Hungarian and Czech Constitutional Courts and of the Estonian Supreme Court, which appear to add weight to the concerns that have been voiced in some older Member States about the fundamental rights protection in the EU. Indeed such concerns were recently also addressed in the concurring opinions to the Bosphorus judgment of the European Court of Human Rights.