The article summarizes the reason of using fortifier food, and introduces the category, the character and the physiology function of the food additive (nutriment).
文章概述了使用强化食品的原因，食品添加剂(营养素)的种类、性质、生理功能。
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Food fortifier "means any natural or artificial food additive belonging to the category of natural nutrients that is put into food to increase its nutritive value."