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宏量营养素是由碳水化物,脂肪和蛋白质组成的,它们是能量代谢和机体组织的生长及维护的主要基质。在胃肠道及更进一步的消化过程中,通过机体不同的器官与组织对宏量营养素的分配和利用,使宏量营养素的同化作用得以实现。宏量营养素的消化、分配及利用过程与其代谢转化有关,这种代谢转化通过不同步骤来进行,其中包括最初形成葡萄糖、脂肪酸、氨基酸的转化过程。这些营
Macronutrients are composed of carbohydrates, fats and proteins, which are the main substrates for energy metabolism and the growth and maintenance of body tissues. In the gastrointestinal tract and further digestion, macronutrient assimilation is achieved through the distribution and utilization of macronutrients by different organs and tissues in the body. The digestion, distribution and utilization of macronutrients are related to their metabolic transformation. This metabolic transformation takes place through different steps, including the initial conversion of glucose, fatty acids and amino acids. These camps