one of the vitamin B complex found in foods such as wheat, beef, chicken, and milk, important for producing energy from food and for keeping the digestion and nervous system healthy烟酸(在小麦、牛肉、鸡肉和牛奶等食品中含有的一种复合维生素B,对体内能量转化和保持消化、神经系统健康有着重要作用)
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