NITRATES AND NITRITES IN SALIVA, HEMOGLOBIN AND METHEMOGLOBIN IN BLOOD OF VEGETARIANS AND PEOPLE ON TRADITIONAL DIET
 
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Pol. J. Food Nutr. Sci. 2000;50(4):73–77
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ABSTRACT:
The contents of nitrates and nitrites in saliva and the blood levels of hemoglobin and methemoglobin were determined by analytical methods in vegetarians and in controls taking traditional food. In vegetarians the levels of nitrates and nitrites in saliva were significantly higher than these in controls, this was probably due to a higher intake of nitrates with diet in that group. Own studies showed that the intake of nitrates with diet by vegetarians was over twice as high as in controls [Traczyk, 1998]. Hemoglobin levels in vegetarians were statistically significantly lower than in controls. In a considerable part of vegetarians (36 %) the hemoglobin level was below normal values. Significantly higher levels of methemoglobin were found in blood of vegetarians as compared to controls. In over 90 % of subjects in that group these levels were above normal values.