. The occurence and distribution of nitrates and nitrites in food, feces and urine. s. in twenty-four hours. (4) The relation of the ingested potassium nitrate to the nitratesfound to be present in the urine is not clearly understood, thedata showing that ingested potassium nitrate has an inhibitoryaction on the formation of nitrates in the body. In all cases theurinary nitrate was found to be present in larger amounts thanthat ingested except in one case. (5) In no case was it deffinately proven that nitrates are presentin feces. (5) Neither urine nor feces were found to contain nitrites.(7)
. The occurence and distribution of nitrates and nitrites in food, feces and urine. s. in twenty-four hours. (4) The relation of the ingested potassium nitrate to the nitratesfound to be present in the urine is not clearly understood, thedata showing that ingested potassium nitrate has an inhibitoryaction on the formation of nitrates in the body. In all cases theurinary nitrate was found to be present in larger amounts thanthat ingested except in one case. (5) In no case was it deffinately proven that nitrates are presentin feces. (5) Neither urine nor feces were found to contain nitrites.(7) The formation of nitrates in the body is not influenced by theweather, and the volume of urine excreted in twenty-four hours hasNothing to do with the amounts of nitrate found in the urine.(S) The conclusions of Rohman, that nitrates are not formed in thebody but are due entirely to the nitrates present in the food, andthe general oppinion held by leading physiological chemists today,that this is true, are not based on actual experiments on man,and are therefore of little Urinary Nitrates per Man per Day, Group(A), Subject(8) Lab. Period-DateNo. 6134 6 7 Dec 3-66181 8 7-10 6448 19 6488 21 28-31 Volume ofUrine 24 hrs c. c.! 812 814 736 945 777 PotassiumNitrate 24 Ingested KNOg per 24 hours m-grams nonett tt it n • • • • • • AverageMinimumMaximum 817736945 *1 noneit tt 8081 46 May 7-10 749 none 8118 47 « 11-14 654 ii 8131 48 ii 15-18 62 it 8166 49 ii 19-22 689 ii 8178 50 « 23-26 660 ii 51 tt 27-30 761 ii 8225 tr <~ n 819 it 8274 54 June 8-11 673 ti 8318 ti 12-15 712 84*1 ii 8321 56 ti 16-19 660 • ti 8366 57 » 20-23 584 ii S372 58 it 24-27 624 ti Average 684Minimum 62Maximum 819 8410 59 597 none 8431 60 July I! o r.(O —w 631 » 8455 61 6-9 600 OOi • u it 8482 62 II 10-13 62
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