Category:catering food

Question:
Why are tofu and spinach can not be boiled with

Answer:
nutrient-rich spinach, the “king of vegetables,” said, However, spinach contains a lot of oxalic acid inside, each 100 grams of spinach contains about 300 milligrams of oxalic acid. Tofu Village contains more calcium, both at the same time if it enters the human body can undergo chemical changes in the human body to produce insoluble calcium oxalate. The human body is calcium oxalate stones, calcium carbonate and other insoluble calcium salt deposits formed, and so it is best not to Ao with spinach and tofu to eat. In addition, the individual is also not an eating spinach to eat too much, because of oxalic acid in spinach can be inside the human body with calcium, iron binding, so that the body lacks calcium, iron, affect health. Of calcium and oxalate in the ratio of 1:2, the most easy to form stones. If the damage through food with this ratio, then the stones can be prevented. For example, when you eat spinach with an eating calcium-rich sesame seeds, milk or fish, you can overcome this shortcoming of spinach.

Answer:
the human body is calcium oxalate stones, calcium carbonate and other insoluble calcium salt deposits formed, and so it is best not to Ao with spinach and tofu with spinach and tofu eating

— This sentence can not be eaten together after decades of propaganda, has become a well-known, deep-rooted iron law. However, according to recent research results can be determined, spinach and tofu is not only a good mix, but also a perfect match bone health calcium.

the past as spinach, tofu is not eaten together with the reasons there is only one: Spinach contains large amounts of oxalic acid will combine with calcium into insoluble precipitate. However, this argument did not see another aspect of the problem — which also contains a variety of spinach for calcium utilization, reduce calcium excretion factors, including a wealth of potassium and magnesium, as well as vitamin k.

people are aware that calcium is closely related with the acid-base balance. Excessive food intake in the protein, the acid-base balance the imbalance, the body will increase calcium excretion. At this point, if they can eat plenty of green leafy vegetables such as spinach, can be sufficient intake of potassium and magnesium, to help maintain the acid-base balance, reduce the number of calcium excretion on bone health was very useful. 100 grams of spinach up to 311 milligrams of potassium, magnesium 58 mg, in the forefront among the vegetables is the Fuji apple 2.7 times the potassium and magnesium content of 11.6 times. With spinach rich in potassium and magnesium, calcium tofu are better able to stay in the body which.

more worthy of a mention is that spinach vitamin k with the promotion of bone calcium to form a powerful effect. Vitamin k nutrition research in recent years, one of the hot, it is “BGP” to form the necessary ingredients. Vitamin k mainly in green leafy vegetables and vegetable oils, while vegetables, spinach is one of the highest levels, second only to kale a concentration of 415 micrograms / 100 grams. Survey data show that middle-aged women, the daily intake of 109 micrograms of vitamin k in the above, fracture risk can be reduced by 30%. Research has also shown that a daily supplement of 200 mg of vitamin k, will have to maintain and enhance the role of bone mineral density. In other words, less than 100 grams a day just to eat spinach, you can achieve this effect.

studies have shown that if the calcium supplement and increase vitamin k, can greatly improve the effectiveness of calcium and promote calcium deposition into the bones of them. Tofu is rich in calcium and protein, plus rich in potassium, magnesium and vitamin k, spinach, calcium is the perfect match bone health.

then, the oxalic acid in spinach how to do? As the oxalic acid easily soluble in water, just put spinach in boiling water for 1 minute remove and Billy, you can remove more than 80% of the oxalic acid. First fried tofu, came alive again Cheuk-off spinach, mixed together, to eat no problem.

Fortunately, vitamin k are not afraid of heat, do not dissolve in water, so Cheuk spinach does not cause its losses. However, vitamin k, and carotenoids, as needed to help absorb fats and therefore do spinach tofu soup, they must remember to put some oil.

the nutritional value of spinach and tofu is well known, but the spinach and tofu can not be burned, it was like icing on the cake, to burn a spinach tofu, so this would only play a bad effect because spinach contains oxalic acid, while the tofu is very rich with metal calcium, so it becomes a burning calcium oxalate. Calcium oxalate is absorbed by the body is not easy quilt, which has caused the loss. To avoid such losses, preferably in the burn before the first boiled spinach with the opening 3 minutes, you can get rid of most of the oxalic acid, but also remove the astringency of spinach, so that together burned to avoid the oxalic acid bad effect. Spinach and tofu do not generally bite, the best one can be the first hot hot good.

tofu is best not to
spinach and spinach cooked together with nutrient-rich, the “king of vegetables,” said, but spinach contains a lot of oxalic acid inside, each 100 grams of spinach contains about 300 milligrams of oxalic acid. Tofu Village contains a more calcium, both at the same time if it enters the human body can undergo chemical changes in the human body to produce insoluble calcium oxalate. the human body is calcium oxalate stones, calcium carbonate and other insoluble deposits of calcium made of , so it is best not to Ao with spinach and tofu to eat. In addition, a separate eat spinach, we should not eat too much time, because of oxalic acid in spinach can be inside the human body with calcium, iron binding, so that the body lacks calcium, iron, affect health. In the ratio of calcium and oxalic acid 1:2, the most easy to form stones. if the damage through food with this ratio, then the stones can be prevented. For example, when you eat spinach with an eating calcium-rich sesame seeds, milk or fish, you can overcome this drawback of spinach.

Reference:Baidu know

Answer:
because they are phase-gram , eating more will be in the chronic poisoning, it is best to eat bad mix

Chinese:为什么豆腐和菠菜不能一起煮

类别: 餐饮食品

问题:
为什么豆腐和菠菜不能一起煮

回答:
　　菠菜营养丰富，有"蔬菜{zw}"之称，但是菠菜里含有很多草酸，每100克菠菜中约含300毫克草酸。豆腐里含有较多的钙质，两者若同时进入人体，可在人体内发生化学变化，生成不溶性的草酸钙。人体内的结石正是草酸钙、碳酸钙等难溶性的钙盐沉积而成的，所以{zh0}不要把菠菜和豆腐一起敖着吃。另外，单独吃菠菜也不宜一次吃得过多，因为菠菜里的草酸能够跟人体内的钙、铁质结合，从而使人体缺乏钙、铁，影响健康。在钙和草酸的比例为1：2时，最易形成结石。若通过食物搭配破坏这个比例，则结石可以防止。例如吃菠菜时搭配着吃些含钙丰富的芝麻、牛奶或鱼，就可以克服菠菜的这个缺点。

回答:
人体内的结石正是草酸钙、碳酸钙等难溶性的钙盐沉积而成的,所以{zh0}不要把菠菜和豆腐一起敖着吃

菠菜和豆腐不能一起吃———这句话经过几十年的宣传，已经成为家喻户晓、深入人心的铁律。然而，根据近年来的研究结果可以判定，菠菜与豆腐不仅是一个很好的搭配，而且是补钙健骨的绝配。

从前认为菠菜不可与豆腐一起吃，理由只有一个：菠菜中含有大量的草酸，会与钙结合成不溶性的沉淀。然而，这种说法没有看到问题的另一个方面———菠菜当中也含有多种促进钙利用、减少钙排泄的因素，包括丰富的钾和镁，还有维生素k。

人们都知道，钙与酸碱平衡密切相关。在蛋白质类食品摄入过量时，酸碱平衡失衡，人体的钙排泄量就会增大。此时，如果能多吃一些绿叶蔬菜，如菠菜，就可以充分摄入钾和镁，帮助维持酸碱平衡，减少钙的排泄数量，对骨骼健康非常有益。100克菠菜中含钾达311毫克，含镁58毫克，在蔬菜中位居前茅，是富士苹果钾含量的2.7倍，镁含量的11.6倍。有了菠菜中丰富的钾和镁，豆腐中的钙就能更好地留在人体当中。

更值得一提的是，菠菜中的维生素k具有促进骨钙形成的强大功效。维生素k是近年来营养学的研究热点之一，它是“骨钙素”形成的必要成分。维生素k主要存在于绿叶蔬菜和植物油中，而菠菜是含量{zg}的蔬菜之一，仅次于羽衣甘蓝，含量达415微克/100克。调查数据表明，中老年妇女每日摄入的维生素k在109微克以上，骨折危险可降低30%。也有研究证明，每天补充200微克的维生素k，就有维持和提高骨密度的作用。也就是说，每天只需吃不到100克菠菜，就可以达到这个效果。

研究表明，如果在补充钙的同时增加维生素k，可以大大提高补钙的效果，促进钙沉积入骨骼当中。富含钙和蛋白质的豆腐，加上富含钾、镁和维生素k的菠菜，正是补钙健骨的绝配。

那么，菠菜中的草酸怎么办呢？由于草酸极易溶于水，只需把菠菜在沸水中焯1分钟捞出，即可除去80%以上的草酸。先炒豆腐，再放焯过的菠菜，混在一起吃就没有问题了。

幸运的是，维生素k不怕热，也不溶于水，所以焯菠菜不会引起它的损失。然而，维生素k和胡萝卜素一样，需要油脂帮助吸收，因而在做菠菜豆腐汤的时候，一定要记得放些油。

菠菜和豆腐的营养价值是尽人皆知的，但是菠菜和豆腐不能同烧，有人想锦上添花，来个菠菜烧豆腐，这样反会起到坏作用，因为菠菜含有草酸，而豆腐则含很丰富的金属钙，这么一烧就变成草酸钙。草酸钙是不易被子人体所吸收的，因而就造成损失。要避免这种损失，{zh0}在烧前，先将菠菜用开水煮3分钟，就能去掉大部分草酸，同时也可去掉菠菜的涩味，这样在一起烧就避免了草酸的坏作用。不仅菠菜和豆腐要这样做，一般吃菜时，{zh0}都能先烫一烫好。

豆腐{zh0}不要和菠菜一起煮
菠菜营养丰富,有"蔬菜{zw}"之称,但是菠菜里含有很多草酸,每100克菠菜中约含300毫克草酸.豆腐里含有较多的钙质,两者若同时进入人体,可在人体内发生化学变化,生成不溶性的草酸钙.人体内的结石正是草酸钙,碳酸钙等难溶性的钙盐沉积而成的,所以{zh0}不要把菠菜和豆腐一起敖着吃.另外,单独吃菠菜也不宜一次吃得过多,因为菠菜里的草酸能够跟人体内的钙,铁质结合,从而使人体缺乏钙,铁,影响健康.在钙和草酸的比例为1:2时,最易形成结石.若通过食物搭配破坏这个比例,则结石可以防止.例如吃菠菜时搭配着吃些含钙丰富的芝麻,牛奶或鱼,就可以克服菠菜的这个缺点.

参考文献：百度知道

回答:
因为两者是相克的，吃多了会中慢性毒的，{zh0}不好混合吃