The fifth column of the table gives the weight of one vieno in grams. This adds no new information, but only gives the weight of one vieno in the metric system. It should be used by those who wish to be accurate in their work, or by those who take a scientific interest in their dietary. [Sidenote: Examples for the student who desires to be exact] The last column of the table gives the actual amount of nitrogen in one vieno of food expressed in grams. This is the accurate figure from which the approximate nitrogen factor for ordinary use has been derived. For example: The actual amount of nitrogen in one vieno of chestnuts is .396. If this number is multiplied by the number of vienos of chestnuts eaten, we would have the actual number of grams of nitrogen consumed. Suppose ten vienos of chestnuts are eaten; we would multiply .396 by ten, which would give us 3.96 grams of nitrogen. For ordinary purposes, I use the nearest decimal, which is .4, and which I give in the fourth column as the nitrogen factor. Those who wish to figure the nitrogen with scientific accuracy should use the figures given in the last column of the table, as in the example I have given. The Vieno system of food measurement is new, and is intended to give to the practitioner and to the housewife the greatest aid in balancing or proportioning the diet. I have therefore included in the following tables, all classes of foods, many of which I do not recommend or use in my scientific work. TABLE OF FOOD MEASUREMENTS DIRECT METHOD OF CALCULATING AVAILABLE NITROGEN IN FOOD Multiplying the number of vienos (column 3) by the nitrogen factor (column 4) will give the amount of available nitrogen in the various foods, expressed in grams 1 2 3 4 5 6 ================+=================+==========+========+========+========= | |No. vienos| | | |Quantity equaling|or amount | |Weight |Grams of Name of Food | one vieno | of heat |Nitrogen|of one |nitrogen | *(100 calories) |energy in | factor |vieno | in one | |one pound | |in grams| vieno ----------------+-----------------+----------+--------+--------+--------- CEREAL FOODS Barley, pearled One ounce 16 .4 27.5 .37 BREAD-- Graham Loaf size, 3/4 in. thick 12 .6 37.5 .59 White Loaf size, 3/4 in. thick 12 .6 39.3 .58 TABLE OF FOOD MEASUREMENTS--(Continued)