resumo Estudos sobre composição de alimentos largamente consumidos pela população são fundamentais para estabelecer se uma determinada dieta é adequada em relação aos nutrientes essenciais. No presente trabalho, são apresentados resultados de análises de nutrientes realizadas em dietas representativas do consumo alimentar de trabalhadores de indústria de autopeças da cidade de São Paulo (homens de 19 a 56 anos), coletadas a partir da porção em duplicata de todos os alimentos e bebidas consumidos durante 3 dias consecutivos. Foram determinados os teores de proteínas, lipídeos, carboidratos, cinza, umidade, fibras alimentares e vitaminas B1, B2 e piridoxina em 24 dietas. Comparando-se os resultados obtidos com as novas recomendações (DRIs), verificou-se que as dietas dos trabalhadores atingiram adequação de 100% em carboidratos e 96% em proteínas e lipídeos. Em relação às fibras dietéticas, as dietas foram inadequadas, com apenas 4,2% de adequação. Todas as dietas foram adequadas em vitaminas B1 e B2, enquanto que 58% das dietas foram inadequadas em relação à piridoxina. Palavras-chave: ingestão dietética, dieta da porção em duplicata, composição centesimal. summAry NUTRITIONAL EVALUATION OF PROTEINS, LIPIDS, CARBOHYDRATES, FIBER AND VITAMINS IN INDUSTRY WORKER'S DIETS.The analysis of food consumed by a large part of the population is important to establish the nutritional composition of diets to verify if diets are adequate regarding essential nutrients. In the present study, diet analysis results of steel industry workers´ dietary consumption are presented. Workers from 19 to 56 years old were selected and their diets were collected by a duplicate portion technique, including all the meals and beverages consumed over 3 consecutive days. The content of lipids, proteins, carbohydrates, ash, humidity, fiber, vitamins B1 and B2 and piridoxine were determined in 24 diet samples. Comparing the results with the values set by the new dietary recommendation dietary intakes (DRIs), it was observed that the workers´ diets were 100% adequate in carbohydrates and 96% in proteins and lipids. However, dietetic fiber content of the diets was considered inadequate (only 4.2% of adequacy). All the diets were adequate in B1 and B2 vitamins, while 58% of the diets were inadequate in terms of piridoxine.
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