Editing Acetaldehyde (section)

====Alcohol consumption====
Many [[microbes]] produce acetaldehyde from ethanol, but they have a lower capacity to eliminate the acetaldehyde, which can lead to the accumulation of acetaldehyde in saliva, stomach acid, and intestinal contents. [[Fermentation|Fermented]] food and many alcoholic beverages can also contain significant amounts of acetaldehyde. Acetaldehyde, derived from mucosal or microbial oxidation of ethanol, tobacco smoke, and diet, appears to act as a cumulative carcinogen in the upper digestive tract of humans.<ref name="SALASPURO M 2011">{{cite journal | author = Salaspuro, M. | title = Acetaldehyde as a common denominator and cumulative carcinogen in digestive tract cancers | year = 2009 | volume = 44 | issue = 8 | pages = 912–925 | doi = 10.1080/00365520902912563 | journal = Scandinavian Journal of Gastroenterology | pmid = 19396661| s2cid = 23291758 }}</ref> According to European Commission's Scientific Committee on Consumer Safety's (SCCS) "Opinion on Acetaldehyde" (2012) the [[Cosmetics|cosmetic]] products special risk limit is 5&nbsp;mg/L and acetaldehyde should not be used in [[Mouthwash|mouth-washing]] products.<ref>[http://ec.europa.eu/health/scientific_committees/consumer_safety/docs/sccs_o_104.pdf Scientific Committee on Consumer Safety SCCS OPINION ON Acetaldehyde]. European Commission. 18 September 2012</ref>