Spinach eat together -- this sentence after decades of propaganda and bean curd cannot be, has become widely known and popular rule. However, according to recent research results can be determined, spinach and tofu is not only a good assort or arrange in pairs or groups, and is a perfect match bone health calcium.
Once think spinach can not eat together with tofu, there is only one reason: spinach contains large amounts of oxalic acid and calcium combined insoluble precipitate.
However, this argument does not see another aspect of the problem -- which also contains a variety of spinach promote calcium utilization, reduce calcium excretion of factors, including the rich in potassium and magnesium, and vitamin K.
People all know that calcium is closely related with the acid-base balance. Excessive food intake in the protein, acid-base imbalance, the body will increase calcium excretion. At this point, if you can eat some 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 is beneficial to bone health.
100 grams of spinach contains 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. The spinach rich in potassium and magnesium, in human body is calcium tofu can better.
It is worth mentioning is that vitamin K in spinach has a powerful effect to promote the formation of bone calcium. Vitamin K is one of the research hotspots in recent years, nutrition, it is "BGP" to form the necessary ingredients.
Vitamin K is found mainly in green leafy vegetables and vegetable oils, and spinach is one of the highest content of vegetables, after collard, content up to 415 mg /100 grams.
The survey data show that in older women 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 vitamin K 200 mg, will have to maintain and enhance the role of bone mineral density. That is to say, every day just to eat less than 100 grams of spinach, you can achieve this effect.
Studies show that, if the increase in vitamin K and calcium supplement at the same time, can greatly improve the effectiveness of calcium, promote calcium deposition in bone. Tofu is rich in calcium and protein, and rich in potassium, magnesium and vitamin K, spinach, calcium is the perfect match bone health.
How do the oxalic acid in spinach.
So, how do the oxalic acid in spinach? Because of oxalic acid, easily soluble in water, just put spinach in boiling water for 1 minutes remove, you can remove more than 80% of the oxalic acid.
First fried tofu, add boiled spinach, mixed together to eat no problem.
Fortunately, vitamin K are not afraid of hot, do not dissolve in water, so Cheuk spinach does not cause the loss of it.
However, vitamin K and carotene, need oil to help absorption, therefore do 菠菜 tofu soup, they must remember to put some oil. |