Effects of low carbohydrate diets high in red meats or poultry, fish and shellfish on plasma lipids and weight loss
Effects of low carbohydrate diets high in red meats or poultry, fish and shellfish on plasma lipids and weight loss
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DOI：
10.1186/1743-7075-4-23
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发表时间：
2007-10-31
影响因子：
4.5
通讯作者：
Wilson, Ted
中科院分区：
文献类型：
--
作者：
Cassady, Bridget A.;Charboneau, Nicole L.;Wilson, Ted
背景：低碳水化合物饮食（lcd）已被证明是促进体重减轻和改善血脂的有效工具。这种饮食通常与肉类消费增加有关，要么是家禽、鱼类和贝类（PFS），它们通常富含多不饱和脂肪（PUFA），要么是红肉（RM），通常富含饱和脂肪（SFA）。饮食中的脂肪酸分布和含量可能影响人的血浆脂质分布。这项研究调查了所食用的肉类类型是否会影响LCD的结果。方法：中度肥胖的受试者食用两种不同的lcd作为减肥方案的一部分：1)富含哺乳动物来源（RM）的饮食旨在含有更多的SFA，或2)富含PFS的饮食旨在含有更多的PUFA。在28天的研究期间，对体重、营养摄入和血脂的饮食依赖性变化进行评估。结果：28天后，两种饲粮均显著减轻体重，RM组和PFS组分别减轻-5.26 +/- 0.84 kg和-5.74 +/- 0.63 kg。PFS饮食与PUFA和胆固醇的摄入量显著增加有关。尽管摄入了高胆固醇和高脂肪，但两种饮食都与血浆胆固醇或血浆脂蛋白胆固醇谱的显著变化无关。虽然两组的血浆甘油三酯都降低了，但只有PFS饮食的效果有统计学意义。
Background: Low carbohydrate diets (LCDs) have been demonstrated to be effective tools for promoting weight loss and an improved plasma lipid profile. Such diets are often associated with increased meat consumption, either poultry, fish, and shellfish (PFS), which are generally high in polyunsaturated fat (PUFA) or red meats (RM), generally high in saturated fat (SFA). The fatty acid profile and content of a diet may influence the plasma lipid profile of humans. This study examined whether the type of meat consumed could influence the outcome of an LCD. Methods: Moderately obese subjects consumed two different LCDs as part of a weight loss regimen: 1) a diet high in foods of mammalian origin (RM) intended to contain more SFA, or 2) a diet high in PFS intended to contain more PUFA. Diet dependent changes in body weight, nutritional intake, and plasma lipids were evaluated during a 28 day study period. Results: Both diets were associated with significant weight loss after 28 days, -5.26 +/- 0.84 kg and -5.74 +/- 0.63 kg for RM and PFS groups, respectively. The PFS diet was associated with a significantly higher intake of PUFA and cholesterol. Despite high cholesterol and fat intakes, neither diet was associated with significant changes in plasma cholesterol or the plasma lipoprotein cholesterol profile. While plasma triglycerides were reduced in both groups, the effect was only statistically significant for the PFS diet.