Does a Healthy Diet Help Weight Management Among Overweight and Obese People?
Does a Healthy Diet Help Weight Management Among Overweight and Obese People?
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DOI：
10.1177/1090198108314617
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发表时间：
2009-06-01
影响因子：
4.2
通讯作者：
Pierce, John P.
中科院分区：
文献类型：
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作者：
Saquib, Nazmus;Rock, Cheryl L.;Pierce, John P.
一项为期4年的随机饮食干预试验检查了研究组之间饮食、体重和肥胖发生率（体重指数[BMI] >= 30 kg/m(2)）的差异。参与者为1510名乳腺癌幸存者，入组时BMI >= 25 kg/m(2)。每年通过电话评估饮食摄入量；在诊所访问时测量体重和身高。在横断面随访期间（p < 0.0001）和纵向随访期间（p < 0.0001），干预参与者比对照组消耗更多的水果、蔬菜和纤维，消耗更少的脂肪能量；在任何随访中，研究组之间的体重没有差异，仅在第一年组之间观察到显著的体重变化差异（p < 0.0001）。在按年龄和体重指数分层后，饮食和体重结果保持不变。在随访期间，两组超重成员的肥胖发生率均无差异（p < 0.05）。如果没有减少总能量摄入的具体努力，饮食调整不会减少肥胖或导致长期体重减轻。
A randomized dietary intervention trial across 4 years examined diet, weight, and obesity incidence (body mass index [BMI] >= 30 kg/m(2)) differences between study groups. Participants were 1,510 breast cancer survivors with BMI >= 25 kg/m(2) at entry. Dietary intake was assessed yearly by telephone; weight and height were measured at clinic visits. Intervention participants consumed more fruit, vegetables, and fiber and less energy from fat than control participants during follow-up cross-sectionally (p < .0001) and longitudinally (p < .0001); weight did not differ between study groups at any follow-up visit, and significant weight change difference was observed between groups only in the 1st year (p < .0001). Diet and weight results remained unchanged after stratifying by age and BMI. No difference in obesity incidence was found during follow-up (p > .10) among overweight members of either study group. Without specific efforts to reduce total energy intake, dietary modification does not reduce obesity or result in long-term weight loss.