In our daily life, most of us have been warned that spinach and bean curd can not be eaten together. However, according to the latest research, spinach and bean curd can work together to supplement calcium and improve bones for the human body. 

The reason for people to refuse to eat spinach and bean curd together is that oxalic acid contained in spinach can be integrated with calcium contained in bean curd to cause insoluble dregs. However, people have ignored that the abundant potassium, magnesium and vitamin K contained in spinach can effectively improve the utilization of calcium and decrease the excretion of calcium inside the human body.

It is known to all that calcium keeps a close relationship with the acid-base balance. If people absorb protein excessively, the acid-base balance can be disturbed to increase the excretion of calcium. At this time, if people eat green vegetables like spinach, the supplementation of potassium and magnesium can maintain the acid-base balance, decrease the excretion of calcium and protect the human bones. Each 100 grams of spinach contains 311 milligrams of potassium and 59 milligrams of magnesium. With the protection of potassium and magnesium, calcium can be effectively preserved in the human body.

What’s more, vitamin K contained in spinach can effectively accelerate the formation of bones. According to the research, vitamin K is the essential ingredient of the formation of osteocalcin. It mainly exists in the green vegetables and plant oil. The content of vitamin K in spinach is extremely high. The supplementation of 200 milligrams of vitamin K can maintain and increase the density of bones. If people supplement 109 milligrams of vitamin K every day, the risk of getting fracture can be decreased by 30%. That is to say, people just need to eat 100 grams of spinach each day to protect their bones.

The research has proved that if people supplement calcium and vitamin K at the same time, the absorption of calcium can be effectively improved. Therefore, spinach and bean curd can be eaten together to improve the supplementation of nutrients. Some people may be fear of oxalic acid contained in spinach. In fact, oxalic acid can be easily dissolved in water. More than 80% of oxalic acid can be removed if people dip spinach in boiled water for one minute. Fortunately, vitamin K will not be dissolved in hot water. Therefore, people can protect vitamin K and remove oxalic acid at the same time.