Author
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MEACHAM, SUSAN - WINTHROP UNIVERSITY |
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Hunt, Curtiss |
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Submitted to: Federation of American Societies for Experimental Biology Conference
Publication Type: Abstract Only Publication Acceptance Date: 4/6/1997 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: Because current food data bases do not contain sufficient cadmium values, the 234 foods most commonly consumed by Americans, as determined by the FDA Total Diet Study Program, were analyzed for Cd content; also analyzed were composite diets representative of toddlers (TOD, 2 yrs), adolescent (ADL, 14-16 yr), and mature (MAT, 60-65 yr) females constructed from these e foods. All foods were purchased in Grand Forks, ND and prepared for wet weight analysis. Triplicate aliquots (5.0 g wet weight) of each food were placed in Teflon tubes, wet digested in 16M HNO3 and 30% H202, and subsequently analyzed by inductively coupled argon plasma spectroscopy. Cd content, reported as ug/g wet weight, was greatest in spinach (0.19), baby food spinach (0.11), chocolate powder (0.12), and potato chips (0.10). The food categories contributing the most to daily female Cd intake (ug) were: (for TOD) beverages, 8; milk and milk products, 6; grains and cereals, 3; (for ADL) beverages, 16; milk and milk products, 6; grains and cereals, 4; and vegetables and potatoes, 4; and (for MAT) beverages, 46; vegetables and potatoes, 5; and grains and cereals, 5. Each of the composite diets contained 0.013-0.015 ug Cd/g. Estimated tota Cd intakes were 27, 39, and 66 ug/d for TOD, ADL and MAT females, respectively. On the basis of average body weights, TOD consumed twice as much Cd as either the ADL or MAT females. High consumption of foods with average Cd content alters Cd intake substantially. For example, typical coffee (0.061 ug/g; decaf, 0.035 ug/g) and tea (0.092 ug/g) consumption increases Cd intakes in adults 1.7 and 2.4 times that of TOD or ADL. |
