问我是一位离休干部,经历过过去贫穷的年代,也赶上了现在富裕的生活。生活好了,但疾病也随之而来。我明白均衡的饮食对人体健康十分有利,但并不完全清楚人体每天到底需要哪些营养素才能达到营养平衡的目的。(云南李先生)答营养素是指食物中对人体有营养的部分,由大营养素和微量营养素组成。大营养 Ask me a retired cadre who has lived through the era of poverty and caught up with the present affluent life. Life is good, but disease also follows. I understand that a well-balanced diet is very beneficial to human health, but it is not entirely clear what nutrients are needed daily to achieve nutritional balance. (Mr. Li Yunnan) A nutrient refers to the nutrition of the human body in food, composed of large nutrients and micronutrients. Great nutrition