title: Diet, nutrition intake, and metabolism in populations at high and low risk for colon cancer. Selected biochemical parameters in blood and urine.
abstract: Selected biochemical parameters (serum protein, albumin, prealbumin, total retinol-binding protein, vitamins A and E, total carotenoids, and urinary urea and creatinine) were determined in healthy, free-living vegetarian and nonvegetarian subjects. The groups studied were composed of Seventh-day Adventist pure vegetarians, Seventh-day Adventist lacto-ovo vegetarians, Seventh-day Adventist nonvegetarians, and general population nonvegetarians. No values indicative of nutritional deficiencies were observed in any of the subjects. Serum carotenoid levels were significantly higher in Seventh-day Adventist pure vegetarians than in members of the other groups. Mean values for serum vitamin A showed no differences between the dietary groups, although 41% of general population nonvegetarian subjects (the group considered at highest risk for colon cancer) had serum vitamin A levels in the upper quartile of the distribution. From these data no conclusions can be drawn relating to the role of dietary habits as determinants of colon cancer risk.
mesh_terms: D000328:Adult; D001798:Blood Proteins / Q000032:analysis*; D001806:Blood Urea Nitrogen; D002338:Carotenoids / Q000097:blood; D003110:Colonic Neoplasms / Q000209:etiology*; D003404:Creatinine / Q000652:urine*; D014676:Diet, Vegetarian; D005260:Female; D006801:Humans; D008297:Male; D011228:Prealbumin / Q000032:analysis; D012177:Retinol-Binding Proteins / Q000032:analysis; D012306:Risk; D012709:Serum Albumin / Q000032:analysis; D014801:Vitamin A / Q000097:blood; D014810:Vitamin E / Q000097:blood; D014815:Vitamins / Q000097:blood*
chemical_list: D001798:Blood Proteins; D011228:Prealbumin; D012177:Retinol-Binding Proteins; D012709:Serum Albumin; D014815:Vitamins; D014801:Vitamin A; D014810:Vitamin E; D002338:Carotenoids; D003404:Creatinine