Original sentence: But the scientific consensus is still that acesulfame K is completely safe, which is the view put forth on the sweetener industry's public relations website, IFIC.However, the studies that purport to show safety have been challenged by a number of individuals and organizations, most notably the Center for Science in the Public Interest in the USA.In particular they note that there have not been long-term human studies, so they doubt the studies which show that acesulfame is rapidly absorbed and then excreted unchanged (i.Safety of usage of Acesulfame K has also examined by JECFA, with the conclusion that Acesulfame K is safe to use, at least at levels less than the acceptable daily intake of 15 mg/kg of body weight.They claim that the existing studies are inadequate (despite being peer-reviewed), that there are flaws in the research protocols, dosing, and time length of the studies, and that as a result acesulfame K may be carcinogenic.not metabolized by the human body) are representative of the long-term
Edited sentence: However, their claims are usually refuted by the vast body of peer-reviewed research.In this case, most studies show that acesulfame is not metabolized by the human body; rather, it is rapidly absorbed and then excreted unchanged, causing no adverse effects in the process.Safety of usage of Acesulfame K has also examined by JECFA, with the conclusion that Acesulfame K is safe to use, at least at levels less than the acceptable daily intake of 15 mg/kg of body weight...Some individuals and organizations suggest that acesulfame K may be a carcinogen