隔夜菜到底吃不吃得?(图)

By Shereen Lehman, MS – Reviewed by a board-certified physician.
Updated November 19, 2016 (作者:谢林-勒曼,该文由医生协会认证医师审校,2016年11月19日更新)

Question: I have read in multiple places that cooked vegetables left overnight in the fridge may have an elevated amount of nitrites and nitrates and may be harmful. Do you know if it’s safe to consume regularly leftover cooked vegetables? I really hope what I read is not true as I routinely eat leftovers for lunch and thought my own cooking is a healthier option than restaurant lunch food.

(提问:我在很多地方都读到这样的文章,说做好的蔬菜放冰箱过夜,会使其中的硝酸盐和亚硝酸盐增高,而这两者有损健康。你知道能否经常吃隔夜菜吗?我真的希望我读到的那些东西不对头,因为我午餐经常吃隔夜菜,而且觉得我自己做的饭菜比餐馆买的健康。)

Answer: For most of us, eating leftover vegetables will not cause problems as long as they’re not spoiled and are reheated properly.

Which doesn’t have anything to do with the nitrates.

There are two times when people should be cautious about nitrates. One of those times is during the first four months of life – but it’s not likely that babies that young are going eat leftover anything. If infants are exposed to excessive amounts of nitrates, it will be from well water that might be used to make their formula.

The second time to think about nitrates is during the last 8 to 10 weeks of pregnancy. But again, this refers to drinking water contaminated with really high levels of nitrates – not the amount typically found in vegetables.

(回答:

对我们大多数人来说,隔夜菜只要没馊掉,加热后食用不会引起任何问题。

而这跟硝酸盐没有任何关系。

在两种情况下,我们应该对硝酸盐多加小心,一是一个月内的胎儿——但那个时期的胎儿也不可能去吃隔夜菜。如果婴儿接触到过量硝酸盐,那只能是从给他们冲奶粉的井水里来的。

第二个需要担心硝酸盐的时期是怀孕8到10周时。但是,这指的是饮用水被污染了,里面含有高度的硝酸盐——而不是隔夜菜里含有的那点量。)

—————————-

(下面的内容只翻译了两篇文章的重点,具体细节请读原文,链接在下面)

硝酸盐本身是惰性的(inert),没什么影响,只有当它被细菌或(口水中的)酶转化成亚硝酸盐后,才起作用。

亚硝酸盐可以生成亚硝胺(nitrosamines, 亚硝胺), 也可以生成一氧化氮(Nitric Oxide),前者对人体有害,后者对人体有益。

坏硝酸盐:(nitrosamines, 亚硝胺)

当亚硝酸盐遭遇高温时,可以产生亚硝胺,所以只要避免高温烹调,就可以避免食入亚硝胺。

人们发现常食加工食品与心脏病等有关连,于是便认为加工食品里的亚硝酸盐是祸首,但实际上加工食品同时也含有大量的盐、脂肪和卡路里,而缺少蔬菜水果,这才是加工食品不健康的原因。

好硝酸盐: (Nitric Oxide, 一氧化氮)

亚硝酸盐对软化血管有好处,可以帮助人体避免产生血栓,降低血压,还能提高运动员的成绩。

https://www.verywell.com/is-the-nitrate-in-leftover-vegetables-harmful-2507123

https://authoritynutrition.com/are-nitrates-and-nitrites-harmful/

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5 responses to “隔夜菜到底吃不吃得?(图)

  1. 每天带的都是隔夜菜

  2. 把隔夜菜放微波炉稍微加热,是否就安全了?

  3. 每天中餐便当带的都是隔夜菜,在公司茶水间微波炉热一下。

  4. 不吃隔夜菜很难,除非不用上班。

  5. 隔夜菜没问题,只要没馊掉,就可以放心大胆的吃。

    隔夜菜里是有亚硝酸盐,但只有一次吃下几千公斤隔夜菜,里面的硝酸盐才足以对人体造成伤害。

发言的人请给自己一个比较好辨识(也比较固定的)ID,凡是没名字的,我就删掉了。

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