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Title: TOCOPHEROL INTAKE & STATUS IN THE JACKSON HEART STUDY

Author
item TALEGAWKAR, SAMEERA - TUFTS UNIVERSITY
item JOHNSON, ELIZABETH - TUFTS UNIVERSITY
item CARITHERS, TERESA - UNIVERSITY OF MISSISSIPPI
item Bogle, Margaret
item TUCKER, KATHERINE - TUFTS UNIVERSITY

Submitted to: Journal of Federation of American Societies for Experimental Biology
Publication Type: Abstract Only
Publication Acceptance Date: 1/20/2006
Publication Date: 3/7/2006
Citation: Talegawkar, S.A., Johnson, E.J., Carithers, T.C., Bogle, M.L., Tucker, K.L. 2006. Tocopherol intake and status in the Jackson Heart Study [abstract]. Journal of Federation of American Societies for Experimental Biology. 20(5):A1032.

Interpretive Summary:

Technical Abstract: Both alpha and gamma tocopherol (toc) have been shown to be associated with reduced risk of several chronic diseases. We conducted this study to assess dietary intake (using a region-specific food frequency questionnaire (LFFQ), a shortened version (SFFQ) and four 24-hour recalls) and serum toc status among African Americans (154M, 254F; 34-84gamma) participating in the Diet and Physical Activity Sub-Study of JHS. 41% met the RDA for alpha toc when supplements were considered vs. 2% with diet alone. Women had higher intakes of total alpha toc than men across assessment methods (Mean ± SE (mg/d) for average of recalls: 73±8.3 vs.54±10.7 (6.5±0.19 vs. 6.0±0.24 from diet); LFFQ: 82±7.3 vs. 64±9.3 (7.2±0.13 vs. 7.0±0.17 from diet); LFFQ: 89±7.6 vs. 67±9.6 (7.2±0.15 vs. 7.0± 0.19 from diet). However, gamma and mu toc intakes did not significantly differ by sex for the SFFQ or recalls (Mean ± SE (mg/d) of gamma toc for recalls: 14.5±0.3; SFFQ: 14.4±0.3; of delta toc for recalls: 2.1±0.07; SFFQ: 2.8±0.09). On the LFFQ, women reported significantly higher intakes than men. Women also had higher serum toc than men (Mean ± SE (µmol/L) for alpha toc: 34.4±0.98 vs. 28.4±1.23; gamma toc: 6.0±0.29 vs. 5.0±0.36; delta toc: 0.42±0.05 vs. 0.23±0.06). Main dietary sources of alpha were chips, oil and salad dressing and fish dishes; of gamma toc, sources included oil and salad dressing, corn bread and baked desserts; and of delta toc margarine, oil and salad dressing and white bread products. Most study participants did not meet current alpha toc intake recommendations from diet and this may contribute to some of the health disparities seen in this population.