function
1, can delay aging and keep young appearance. Vitamin E contained in lard can delay aging. Vitamin E is the best antioxidant, which not only helps to delay aging and enhance the immune level of the body, but also helps the human body to remove accumulated oxygen free radicals, making the panel more delicate and elastic. It also helps to delay the arrival of female menopause and improve the quality of life of couples. At the same time, vitamin E plays an active monitoring role in preventing cancer.
2, can protect people's eyes. Because lard contains carotene, it can protect people's eyesight. Appropriate amount of β -carotene can promote the normal content of rhodopsin, thus avoiding the slow adaptation to dark field caused by lack of vitamin A and avoiding the damage of strong light after dark field. In addition, it can also prevent night blindness, dry eye, corneal ulcer and keratomalacia.
3, can promote the normal development of the human body. Vitamin A contained in lard can promote the normal development of human body and maintain normal vision. * * * is related to dark vision and the integrity of epithelial tissue. However, when vitamin A is deficient, it is easy to suffer from night blindness and rough face. When there is too much vitamin A in the body, it can't be excreted with urine, but stored in the liver and other parts, eventually reaching the degree of poisoning. Common symptoms include nausea, voice coarsening, hair loss, dry and desquamation of face plate, bone pain, fatigue and drowsiness. Adults may have blurred vision and headache, and infants may have dysplasia, hepatomegaly and nervousness. When the intake of vitamin A is reduced, the symptoms will be improved and the prognosis is generally good.
harm
1, lard has a unique flavor. Cooking with lard will greatly increase people's appetite, leading to overeating, obesity and cardiovascular diseases.
2. Lard is a high-energy food, which is easy to consume too much energy, leading to obesity.
3. The cholesterol content of lard is about 100mg/ 100g, which is also the cause of cardiovascular diseases.
Lard has been labeled as a bad fat that is harmful to health for nearly a hundred years. What puzzled many people at that time was that lard, as a part of traditional diet, had been popular for thousands of years. Just as we study whether saturated fat is healthy, our human ancestors are also concerned about what is healthy food.
4. The content of saturated fatty acids in lard is high, which is easy to cause cardiovascular diseases. A large number of studies show that saturated fatty acids can increase the incidence of cardiovascular diseases, while unsaturated fatty acids can significantly reduce the incidence of cardiovascular diseases. The principle of scientific diet is to reduce the content of saturated fatty acids in the diet as much as possible and keep the reasonable ratio of saturated fatty acids: monounsaturated fatty acids: polyunsaturated fatty acids as 1: 1: 1.
working methods
1, pork suet is cut into small pieces of two or three centimeters square and cleaned;
2. Put it into a wok, add half a bowl of water and bring it to a boil;
3. Turn to low heat and simmer slowly. After simmering for about 30 minutes, add water to prevent the meat from suddenly heating and zooming. The lard cooked in this way is whiter and more fragrant after cooling. After the water is boiled, be sure to turn to the minimum fire and cook slowly. You will see the water gradually disappear and the oil gradually increase.
4. After cooking for about 1 hour, the diced meat shrinks into small pieces, which are slightly yellow and cannot survive. The whole process is a small fire to prevent the oil residue from being enlarged and destroying the taste and composition of the oil. There is no need to cover the whole process, just stir a few times at the beginning when the oil is low to avoid uneven heating. Take out the oil residue, and when the oil is completely cooled, pour it into a container to seal and refrigerate * * * Be careful not to pour the crumbs at the bottom of the pot into * * *. If you can't eat it all at once, you can also freeze it in bags to remove the loss of residue at the bottom of the filter pot, and you can cook about 600ml * * *.