I'm assuming that the law is written such that it applies to ingredients which are both psychoactive and have no reasonable culinary value. so sodium benzoate

I'm assuming that the law is written such that it applies to ingredients which are both psychoactive and have no reasonable culinary value. so sodium benzoate is okay (no psychoactive effect) and hazelnut is okay (use as a flavoring), but random alkaloids wouldn't. buzzkill law, though.