Can eating black rice make white hair black? People who drink black rice porridge for a long time may reap 4 sweetness

Ms. Liu, 43, recently discovered that she had white hair growing on the top of her head. She heard that she should eat more black food, such as black rice, black beans, and black sesame seeds, to make her hair black. So she bought a bag of black rice in the supermarket and planned to go home and cook porridge.

In order to make the porridge soft enough, Ms. Liu soaked the black rice with cold water the night before. Unexpectedly, when she cooked porridge the next day, she found that the rice water turned black. Looking at the whole bowl of dark water, she didn't dare to continue cooking porridge with this black rice, worried that what she bought was dyed black rice.

In this regard, Zhu Yi, an associate professor at the School of Food Science and Nutritional Engineering at China Agricultural University, said that if you want to distinguish whether the black rice is a natural substance or a dyed pigment that falls out after soaking or panning, you can first add a few drops of vinegar to the water, and then add a little more. Baking soda, if the color of the water turns red and then blue-green, it means that the anthocyanins contained in the black rice are in the water, and if it does not change color, it is the pigment.

Ms. Liu contacted CCTV reporters and finally found out that it was an oolong. But can eating black rice really turn white hair into black hair?

1. Eating black rice can turn white hair into black hair?

Black rice is black because its epidermal cells contain water-soluble anthocyanins . When the black rice is soaked or washed with water, its epidermal cells will be damaged, and the anthocyanins will dissolve in water, so the water will appear purple-red or purple-blue of the anthocyanins themselves, and black when the concentration is high.

Can eating black rice make white hair black? The answer is no. Because the anthocyanin contained in black rice is different from the melanin of black hair, melanin is formed before a person is born, and with the growth of youth, the synthetic melanin gradually decreases, and eventually more and more gray hair. So no matter how much you eat, it won't help your hair turn back black.

Similarly, black food such as black sesame and black beans, no matter how much you eat, will not make your hair black.

2. What happens to people who drink black rice porridge for a long time?

Traditional Chinese medicine believes that black rice has good medicinal value. Soreness of the waist and knees, etc.

In fact, black rice is a coarse grain, commonly known as "longevity rice" and "blood-enriching rice". It is rich in nutrients such as B vitamins, minerals iron and dietary fiber. Among them, the content of B vitamins in black rice is 4 times higher than that in refined white rice, and the content of trace elements such as iron, zinc, potassium, magnesium, and manganese is also 2-5 times that of white rice. Moreover, the glycemic index of black rice is low, which is suitable for "three high" people and the elderly.

Nutritionist Wang Silu said that eating black rice porridge regularly can provide sufficient energy for the body. The carbohydrates and proteins in black rice are the basic functional substances of the body. It can also promote intestinal metabolism and help prevent constipation, thanks to the dietary fiber in black rice. Moreover, black rice porridge has a strong sense of satiety and can help lose weight. In addition, black rice is rich in iron, and proper consumption of black rice porridge can relieve and improve anemia to a certain extent.

Of course, black rice as a food, we can not expect too much of its role.

3. Black rice cannot be eaten casually

First of all, black rice should not be processed, because processing will destroy a large amount of nutrients contained in the skin layer of black rice, resulting in nutritional deficiency, so unprocessed black rice should be chosen for daily consumption.

Secondly, before cooking black rice, soak it in water, because black rice is more difficult to boil. After people eat uncooked black rice, not only can they not absorb the nutrients in it, but it can also easily cause indigestion and even cause acute gastroenteritis. and other diseases.

Furthermore, black rice is not suitable for everyone. The following 3 groups of people should eat or not eat black rice with caution:

1. Patients who are taking tetracyclines

Patients should not eat black rice while taking tetracycline drugs. Because the metal ions in black rice will react with tetracyclic drugs, which is not only unfavorable for drug absorption, but also reduces drug efficacy.

2. Patients with high copper

Due to the high content of copper in black rice, patients with high copper should not eat black rice, otherwise it will increase the level of copper in the body and affect health.

3. People with indigestion

Black rice is not easy to digest, and people with indigestion and constipation should eat less.

In addition, coarse grains are not the more the better .

The anti-nutrients contained in whole grains will hinder the absorption of iron, and if eaten in large quantities for a long time, it will increase the risk of anemia.

Moreover, coarse grains are relatively difficult to digest, and eating too much will increase the burden on the stomach and intestines, which can easily cause indigestion, flatulence and other discomforts. Therefore, it is recommended that the daily diet should be thick and thin, and the proportion of coarse grains should account for about 30%-50% of the staple food .

Black rice is rich in nutritional value, and daily consumption in moderation is beneficial to health. However, black rice is hard and difficult to digest, and eating too much may cause gastrointestinal discomfort. And any food, no matter how good it is, should pay attention to "too much", so when eating black rice, you should pay attention to controlling the amount, and you should soak it before cooking.

References:

[1] Black rice and black sesame lose their color when exposed to water. Do you suspect that you have used dyes? A trick to teach you how to distinguish! .CCTV Life Circle, 2018-05-20

[2] Wang Silu. Little "black rice", an ordinary and good ingredient. Nutritionist Wang Silu, 2019-05-09

[3] There are many benefits to eating black rice, but it is best not to eat more of these three types of people. Family Doctor Online, 2018-06-30

Reproduction is prohibited without the author's permission