LATITUDE WITHIN AN NCEP STEP I DIET--AN OPTIMAL DIET

该研究的目的是检验潜在的公众是否 降低冠心病 (CHD) 风险的健康影响 NCEP/AHA 第一步饮食目前可能被低估，因为 过分强调避免脂肪和胆固醇以及 不太重视植物性食品的纳入。大量 植物性食品中的饮食因素与减少 各种冠心病危险因素。然而，食品工业的生产 过去十年中数千种新的“低脂”食品 现在已经可以遵循具有基础的第一步饮食 低脂商业食品（通常热量很高）而不是 植物性食品。我们将设计两种均符合 NCEP/AHA 的饮食 第一步饮食指南并与总脂肪、饱和脂肪、 单不饱和脂肪、多不饱和脂肪、胆固醇、蛋白质和总脂肪 碳水化合物。一种饮食将包含很大一部分植物性食物 食物中，植物蛋白的含量会相对较高， 精氨酸、复合碳水化合物、可溶性和不溶性纤维、维生素 E、C 和叶酸、类胡萝卜素、植物甾醇、植物雌激素、类黄酮、 大蒜素和皂苷 (NCEP-Plus)。另一种饮食将包括大量 市售减脂产品的比例将 动物蛋白、简单碳水化合物和反式蛋白含量相对较高 脂肪酸（NCEP-低）。

The objective of the study is to examine whether the potential public health impact on coronary heart disease (CHD) risk reduction of an NCEP/AHA Step One Diet may currently be underestimated because of an overemphasis on the avoidance of fat and cholesterol and an underemphasis on the inclusion of plant-based foods. A large number of dietary factors in plant based foods have been linked to the reduction of various CHD risk factors. However, the food industry's production of thousands of new "reduced-fat" food products over the last decade has now made it possible to follow a Step One Diet with a foundation in low-fat commercial foods (that are often high in calories) rather than plant-based foods. We will design two diets that both meet NCEP/AHA Step One Diet guidelines and are matched on total fat, saturated fat, monounsaturated fat, polyunsaturated fat, cholesterol, protein and total carboyhydrate. One diet will include a large proportion of plant-based foods, and will be relatively higher in content of plant protein, arginine, complex carbohydrates, soluble and insoluble fiber, Vitamins E, C and folate, carotenoids, phytosterols, phytoestrogens, flavonoids, allicin and saponins (NCEP-Plus). The other diet will include a large proportion of commercially available reduced-fat products and will be relatively higher in animal protein, simple carbohydrates and trans fatty acids (NCEP-Low).