V2EX micronutrient

Micronutrient

定义 Definition

n. 营养学术语,指人体或生物体只需少量摄入、但对正常生长、代谢和健康维持必不可少的营养物质。常见类别包括维生素和矿物质;它们通常不直接提供大量能量,而是参与酶反应、细胞功能、骨骼形成、神经传导或免疫调节等过程。膳食评估、公共卫生营养和临床营养中常用这个词来讨论缺乏、过量或推荐摄入量。

发音 Pronunciation

/makronutrint/, /makrnjutrint/

例句 Examples

Iron is an important micronutrient.
铁是一种重要的微量营养素。

A balanced diet usually provides enough micronutrients, but some people may need supplements under medical guidance.
均衡饮食通常能提供足够的微量营养素,但有些人可能需要在医生指导下补充。

词源 Etymology

micro-nutrient 组成。micro- 来自希腊语,表示“小的、微量的”;nutrient 与“滋养、营养”有关。因此这个词的字面意思是“少量需要的营养物质”。

相关词 Related Words

科学文献用例 Scientific Usage

  • 营养学教材中常用来区分维生素、矿物质与碳水化合物、脂肪、蛋白质等大量营养素。
  • 公共卫生报告中常用于讨论人群层面的微量营养素缺乏、食品强化和膳食干预。
  • 临床营养指南中常用于评估患者是否存在维生素或矿物质摄入不足、吸收障碍或补充需求。
  • 食品科学和膳食调查研究中常见于分析食物成分、膳食质量和推荐摄入量。
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