title: Composition of diets of low-income pregnant women: comparison of analyzed with calculated values.
abstract: Nutrient composition of diets of low-income pregnant women was determined by laboratory analysis and by calculation from food tables. Twenty-two diet composites, each representing a subject's 24-hour intake, were so evaluated. Findings from use of the two methods were compared. Mean analyzed and calculated values compared favorably for food energy, protein, fat, carbohydrate, potassium, magnesium, and zinc, although large differences in values as determined by the two methods were found in some single diet composites. Analyzed values compared less favorably with calculated values for calcium, phosphorus, iron, sodium, and the six vitamins studied.
mesh_terms: D000293:Adolescent; D000328:Adult; D004032:Diet; D005260:Female; D005504:Food Analysis; D006801:Humans; D008903:Minerals / Q000032:analysis; D011203:Poverty; D011247:Pregnancy; D014815:Vitamins / Q000032:analysis
chemical_list: D008903:Minerals; D014815:Vitamins