期刊
JOURNAL OF THE AMERICAN COLLEGE OF NUTRITION
卷 26, 期 2, 页码 182-189出版社
AMER COLLEGE NUTRITION
DOI: 10.1080/07315724.2007.10719600
关键词
weight loss; red meat; beef; poultry; DXA; lipoprotein-lipid profile; adiponectin
资金
- NATIONAL INSTITUTE ON AGING [R29AG013409] Funding Source: NIH RePORTER
- NIA NIH HHS [R29 AG013409-07, R29 AG013409-06, R29 AG013409-05, R29 AG13409] Funding Source: Medline
Objective: The primary aim of this study was to assess the effects of dietary protein intake on energy restriction (ER)-induced changes in body mass and body composition. Clinical markers of metabolic and cardiovascular diseases were also measured. Design: 54 postmenopausal women, age 58 +/- 2 y, body mass index 29.6 +/- 0.8 kg/m(2), were assigned to one of four groups. For 9 weeks, three ER groups ate a 1000 kcal/d lacto-ovo vegetarian basal diet plus 250 kcal/d of either beef (BEEF, n = 14), chicken (CHICKEN, n = 15), or carbohydrate/fat foods (CARB (lacto-ovo), n 14), while a control group (CON, n = 11) consumed their habitual diets. Results: Energy intake was lower in the ER groups compared to CON (BEEF, 1114 +/- 155 kcal/d, CHO: PRO: FAT, 46:24:30 % of energy intake; CHICKEN, 1098 +/- 203 kcal/d, 51:25:24; CARB 1158 341 kcal/d, 59:17:24; CON, 1570 633 kcal/d, 47:20:33), but did not differ among ER groups. For all ER subjects combined, body mass (-6.7 +/- 2.4 kg, 9 %), fat mass (-4.6 +/- 1.9 kg, 13 %), and fat-free mass (-2.1 +/- 1.1 kg, 5 %) decreased. These responses did not differ among the ER groups, except for body mass (CHICKEN -7.9 +/- 2.6 kg(a); BEEF -6.6 +/- 2.7 kg(a,b); CARB -5.6 +/- 1.8 kg(b); CON -1.2 +/- 1.2 kg(c); values with a difference superscript differ, p < 0.05). From PRE (week 0) to POST (week 9), total and LDL cholesterol decreased similar to 12%, with no differences among groups. Triacylglycerol, HDL cholesterol, C-reactive protein (CRP), glucose, insulin, leptin, and adiponectin were not changed over time or differentially affected by diet. Conclusions: Overweight postmenopausal women can achieve significant weight loss and comparable short-term improvements in body composition and lipid-lipoprotein profile by consuming either a moderate-protein (25% of energy intake) poultry- or beef-containing diet or a lacto-ovo vegetarian protein (17% of energy intake) diet.
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