吃罐头有什么坏处
各类食品的罐头,都讲一下,谢谢啦
推荐回答(5个)
吃罐头的坏处:
1、含有防腐剂。为延长保存期,罐头食品在制作过程中要加入防腐剂常用的如苯甲酸。一般而言,罐头食品所加防腐剂经过检验对人体无毒害作用,少量短期食用是相对安全的,但是,经常食用对肝、肾均有损害。
2、含有添加剂。罐头中加入添加剂是为了使食品的味美,在加工过程中,罐头中加入的添加剂包括香料、色素、人工调味剂等,对小儿有害。
3、损失维生素。罐头加工后损失维生素C大约有10%-60%,维生素B1损失20%-80%,维生素B2与维生素PP损失不到10%,泛酸损失20%-30%,维生素A损失15%-20%。

扩展资料:
食用罐头的注意事项
1、检查罐头是否存放过期,有无锈迹特别是膨听现象。如果罐头盖向处鼓起,说明罐头中的厌氧细菌大量繁殖,产生了酸和气体,罐头中的食品已经变质,绝不能再食用。
罐头打开之后如果没有变色变味,仅见到衬垫着一层纸,或树叶时,这是厂家为保鲜增味而采取的技术措施。比如,在一些鱼、虾、火腿罐头中常衬一层硫酸纸,其作用是防止鱼虾受热分解而产生的一些化学物质与铁锡包装接触,使食品污染、变质。对人体无害,只要去掉就可以了。
2、加工。食用罐头之前,如果条件许可,最好先连包装一块蒸煮一下,既可消毒又能增强食品味道。或者打开以后适当回锅,再加些自己喜欢的调味品,更能引起食欲。
3、及时食用。罐头食品营养丰富,极易变质。因此,罐头被开以后,最好一次吃完,如一次吃不完,不宜久放,以免微生物侵入而受污染变质。水果罐头容易被乳酸菌、醇母菌污染产生酸败味、酒精昧。变质的剩余罐头不要再食用。
参考资料来源:百度百科-罐头
1、 含有防腐剂。为延长保存期,罐头食品在制作过程中要加入防腐剂(常用的如苯甲酸)。一般而言,罐头食品所加防腐剂经过检验对人体无毒害作用,少量短期食用是相对安全的,但是,经常食用对肝、肾均有损害。
2、 含有添加剂。罐头中加入添加剂是为了使食品的味美,在加工过程中,罐头中加入的添加剂包括香料、色素、人工调味剂等,对小儿有害。
3、 损失维生素。罐头加工后损失维生素C大约有10%-60%,维生素B1损失20%-80%,维生素B2与维生素PP损失不到10%,泛酸损失20%-30%,维生素A损失15%-20%。
因此,目前市场上的罐头类食品,在营养和卫生方面都存在一定的缺陷,不能代替新鲜的蔬菜和水果,儿童不适合大量吃罐头
你还在吃罐头食品吗?不仅营养低,还会危害健康,90%的人不知道
没有什么大坏处,因为罐头食品进行烹饪时的温度比普通食品进行烹饪时的温度低,也就反而能保留尽可能多的微量元素!如果算上损耗基本跟普通食品相差无几。其次,罐头食品一般是通过密封、糖渍和盐腌让保质期长的,并不需要防腐剂。最后,罐头加香料(你们没说香精)有什么错?也是大自然的产物哦
经常吃罐头对身体肯定不好,原因有以下三点:
含有添加剂。为了使罐头更美味,在加工过程中会加入香料、色素、人工调味剂等添加剂,常吃对人体有害。
损失维生素。罐头加工后损失维生素C大约有10%~60%,维生素B损失20%~80%,维生素P损失近10%,维生素A损失15%~20%。
很多水果类罐头含有较高的糖分,并以液体为载体被摄入人体,使糖分的吸收率因之大为增高又可在进食后短时间内导致血糖大幅攀升,胰腺负荷加重。同时,由于能量较高,有可能会导致肥胖。
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