N any substance, such as carbon, hydrogen, or oxygen, that is required in large amounts for healthy growth and development 大量营养素; 碳、氢或氧等为健康成长和发展所大量需求的物质
Calcium is an essential macronutrient for plants and functions in signal transduction.
钙是植物必需的大量元素，在信号传导中起作用。
The first type of nutrient is called a “macronutrient”, which refers to any nutrient that our body needs in large quantities in order to stay alive.
第一种类型“常量营养素”是指为维持生命，我们要大量消耗的营养素。
The serving sizes of the foods in each list (starches, fruits, milks, vegetables, meats and fats) reflect the mean macronutrient and energy values for each of the groups in this database.
每个列表中的食物的列项（如淀粉类、水果类、乳制品、蔬菜类、肉类和脂肪）反映了数据库中的每种组群食品的主要营养素和能量值。
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