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An alkaline reaction of the colon contents seems to have a tumorigenic effect by a direct action on the mucus of the mucous cells. An acidic reaction, on the other hand, appears to be protective. These differences are dependent on the patterns of diet and manner of eating. Proper mastication of food, roughage, cellulose and vegetable fibre, and short-chain fatty acids of milk and fermented milk products in the diet appear to be protective.<\/jats:p>","DOI":"10.1177\/014107688207500907","type":"journal-article","created":{"date-parts":[[2022,7,7]],"date-time":"2022-07-07T06:49:17Z","timestamp":1657176557000},"page":"709-714","source":"Crossref","is-referenced-by-count":49,"title":["Faecal Urobilinogen Levels and pH of Stools in Population Groups with Different Incidence of Cancer of the Colon, and Their Possible Role in its Aetiology"],"prefix":"10.1177","volume":"75","author":[{"given":"S L","family":"Malhotra","sequence":"first","affiliation":[{"name":"Associate Professor of Family and Community Medicine University of Garyounis, Benghazi, Libya"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[1982,9,1]]},"reference":[{"key":"bibr1-014107688207500907","unstructured":"AhrensE HJr, HirschJ, InsullWJr, PetersonM L (1958) In: Chemistry of Lipids as Related to Atherosclerosis. 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