nutrient
/ˈnjuːtrɪənt/noun
- a substance that provides nourishment essential for the maintenance of life and for growth营养（物质）, 滋养物, 养料：
fish is a source of many important nutrients, including protein, vitamins, and minerals.
鱼是很多重要养分的来源之一, 包括蛋白质、维生素和矿物质。
词源
mid 17th cent.: from Latin nutrient- 'nourishing'， from the verb nutrire.