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如今,附有营养保健说明书的蛋白质粉,令许多注重健康的人士心甘情愿地掏腰包。我们是否有必要用蛋白质粉来补充营养呢?北京协和医院营养科陈伟医生介绍说,蛋白质的品质有优劣之分。首先,蛋白质的来源分为植物蛋白(如大豆蛋白)和动物蛋白(如乳清蛋白)。相比较,乳清蛋白提供的氨基酸种类和比例较接近人体所需要的模式,消化吸收利用率较高,对人体有益。大豆蛋白虽然是优质植物蛋白,可是8中必需氨基酸中蛋氨酸含量不足,影响其功能发挥,另外大豆蛋白不含免疫球蛋白和乳铁蛋白。此外,制作工艺不同,也使蛋白质粉的质量有一定的差别。
Nowadays, the protein powder with the nutrition and health care manuals makes many health-conscious people willingly pay for it. We need to use protein powder to supplement nutrition? Beijing Union Medical College Hospital, Dr Wei Chen Wei, said the quality of the protein has advantages and disadvantages. First, the source of the protein is divided into plant proteins (such as soy protein) and animal proteins (such as whey protein). In comparison, whey protein provides the type and proportion of amino acids closer to the human body needs the mode of digestion and absorption of higher utilization, good for the human body. Although soy protein is a high-quality plant protein, methionine in essential amino acids in 8 is insufficient, which affects its function. In addition, soy protein does not contain immunoglobulin and lactoferrin. In addition, the production process is different, but also make the quality of protein powder have some differences.