Want to live healthily and longevity, usually eat and drink, eat properly, and eat nutritiously. After the snow, it was time for winter supplements. Li Hongyu, deputy director of the Department of Nutrition of the Second Hospital of the City told this reporter that winter tonic is the best season. He believes that eating more "black food" in winter will benefit kidney, warmth and physical strength. It is suggested that old people may eat less "three whites" and eat more "three blacks".

The reporter learned that the so-called "three whites" are salt, sugar and fat. Eating too much salt can easily lead to increased blood pressure, hardening of the arteries, and increase the burden on the kidneys. In general, the daily intake of salt is preferably 6 grams. Sugar is an essential substance for the human body, but excessive intake can easily cause high blood pressure, obesity, liver damage and so on. When cooking, you can use the method of dripping soup, squeezing or boiled food to dip the sweet and salty taste on the surface of the food. It can not only satisfy the desire of the mouth, but also can not absorb excessive sugar and salt. . Animal fat can increase the hardening of the blood vessels and increase cholesterol. It is not to eat more, but it cannot be eaten. Under the premise of 25 grams to 30 grams of oil per person per day, the ratio of vegetable oil to animal fat is preferably 10:7.

According to reports, "three black" foods are mushrooms, black fungus and black rice. Mushrooms can prevent cancer and resist decay, especially mushrooms, which have a dissolving effect on cholesterol, can lower blood fat, serum cholesterol, and prevent osteoporosis. Black fungus is a natural anticoagulant that has blood-supplementing, blood-activating, and prevention and treatment of coronary heart disease and arteriosclerosis, but it is recommended to eat only about 2 times a week. Black rice is dark-skinned and rich in nutrition. It has the reputation of "black pearl" and "the king of rice in the world." It is particularly suitable for old people who have low back pain, soft knees, and weak limbs. Therefore, black rice is also called "medicine rice." The black rice is brewed with black rice porridge, which is light, soft and palatable. It is easy to digest and absorb, and it also has a good nourishing effect. Our reporter Tan Lipeng

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