期刊
NUTRITION AND CANCER-AN INTERNATIONAL JOURNAL
卷 60, 期 1, 页码 31-38出版社
ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
DOI: 10.1080/01635580701621320
关键词
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资金
- NCI NIH HHS [R01 CA069375-09, R01 CA069375-06S1, R01 CA069375-04S2, R01 CA069375-04, R01 CA069375-06, R01 CA069375-07, R01 CA069375-05S2, R01 CA069375-04S1, R01 CA069375-02S1, R01 CA069375, R01 CA069375-05S3, R01 CA069375-04S3, R01 CA069375-04S4, R01 CA069375-05S5, R01 CA069375-06S2, R01 CA069375-05S1, R01 CA069375-03S1, R01 CA069375-03, R01 CA069375-05S4, R01 CA069375-10, CA 69375, R01 CA069375-05, R01 CA069375-08, R01 CA069375-02] Funding Source: Medline
- NCRR NIH HHS [M01 RR 00070, M01 RR 00079, M01 RR 00827] Funding Source: Medline
- NATIONAL CANCER INSTITUTE [R01CA069375] Funding Source: NIH RePORTER
- NATIONAL CENTER FOR RESEARCH RESOURCES [M01RR000827, M01RR000070, M01RR000079] Funding Source: NIH RePORTER
We examined the effect of dietary energy density change on body weight in participants of a randomized trial. Intervention participants markedly increased fruit and vegetable intake while reducing energy intake from fat. Participants were 2,718 breast cancer survivors, aged 26-74 yr, with baseline mean body mass index of 27.3 kg/m(2) (SD = 6.3). We assessed dietary intake by sets of four 24-h dietary recalls and validated with plasma carotenoid concentrations. Weight and height were measured at baseline, 1 yr, and 4 yr. Dietary energy density was calculated using food but excluding beverages. Intervention participants significantly reduced dietary energy density compared to controls and maintained it over 4 yr-both in cross-sectional (P < 0.0001) and longitudinal (Group x Time interaction, P < 0.0001) analyses. Total energy intake or physical activity did not vary between groups. The intervention group had a small but significant weight loss at 1 yr (Group x Time interaction, P < 0.0001), but no between-group weight difference was observed at 4 yr. Our study showed that reducing dietary energy density did not result in a reduction in total energy intake and suggests that this strategy alone is not sufficient. to promote long-term weight loss in a free-living population.
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