Fat in the diets of adolescent girls with emphasis on isomeric fatty acids
1986
Van den Reek, M.M. | Craig-Schmidt, M.C. | Weete, J.D. | Clark, A.J.
Extract: To determine the amount of isomeric fatty acids in the diets of a segment of the American population, daily food intake was collected, using the duplicate portion method, from eight healthy white adolescent girls for 7 days. The fifty-six diets were analyzed for fatty acids by gas-liquid chromatography. The amount of trans isomers of octadecenoic acid (18:lt) in the diets of the eight girls ranged from 3.5 to 8.2 per cent of total fatty acids with an average of 5.3 per cent. Other trans fatty acids included trans isomers of 14:1 and 16:1, and cis,trans and trans,cis isomers of 18:2. No measurable amounts of trans,trans octadecadienoic acid (18:2tt) were found in the diets of the girls. The total trans fatty acid content of the diets averaged 6.5 per cent of total fatty acids. The daily consumption of total trans fatty acids by the eight girls over a 1 wk period averaged 3.1 g, with 2.6 g of this being 18:lt.(author)
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