Complex sentence: Accessed 1 January 2009 This text has been the subject of considerable controversy among proponents of dietary supplements, because many countries regulate such substances as therapeutic goods or pharmaceuticals or by some other category, without requiring them to be shown to be medically useful.
Split into simpler sentences: Accessed 1 January 2009 This text has been the subject of considerable controversy among proponents of dietary supplements. Many countries regulate such substances as therapeutic goods or pharmaceuticals or by some other category, without requiring them to be shown to be medically useful.