Complex sentence: As of 2016, there are no approved health claims for EGCG in Europe or the United States, and the US Food and Drug Administration has issued warning letters against marketers of products claiming that EGCG provides anti-disease effects or overall health benefits.
Split into simpler sentences: As of 2016, however, there are no approved health claims for EGCG in the United States or Europe. The US Food and Drug Administration has issued warning letters against marketers of products claiming that EGCG provides anti-disease effects or overall health benefits.