A computerized procedure for estimating nutrient intake
作者:
Malcolm Williamson,
Colleen Azen,
Phyllis Acosta,
期刊:
Journal of Toxicology and Environmental Health
(Taylor Available online 1976)
卷期:
Volume 2,
issue 2
页码: 481-487
ISSN:0098-4108
年代: 1976
DOI:10.1080/15287397609529449
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
A procedure was devised for computing intake in terms of calories, total protein, phenylalanine, carbohydrate, and fat. The procedure used a magnetic tape containing 3,122 numbered food items. The nutrient composition of each food was reported for 100 g of the edible portion of the food. In addition, diet diaries were prepared in which the foods eaten during the preceding 24‐hr period, the code for each food corresponding to the number for the same item on the magnetic tape, and the number of units of each food eaten were recorded. A computer program then was written that calculated the amounts of intake per day for each nutrient. Application of the procedure for 42 consecutive days on the daily diet records of 43 adult carriers of the phenylalanine hydroxylase enzyme formed the data base used to determine if aspartame significantly increased levels of phenylalanine in the blood. Adaptations of the procedure permit calculations of intake for periods from 1 to 30 days and analyses of additional nutrients including calcium, phosphorous, iron, vitamin A, thiamine, riboflavin, niacin, and ascorbic acid.
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