What is the nutritional value of fresh kidneys of pigs, cattle and sheep?

The pork tenderloin slaughtered that day is naturally dark red, elastic, sticky and moisture-free. The chilled pork tenderloin will be stained with blood red when pressed, without elasticity and adhesion, and the surface will be very slippery. When selecting pork tenderloin, first look at whether there are bleeding spots on the surface, and some are abnormal. Secondly, see if the body is bigger and thicker than the average pork tenderloin. If it is big and thick, it is necessary to carefully check whether the kidneys are red and swollen. The inspection method is: cut the waist of the pig with a knife to see if the skin and medulla (between the white tendon and the red tissue) are blurred or not.

Pig kidney has the effects of invigorating kidney and qi, dredging bladder, promoting digestion and quenching thirst. Can be used for treating lumbago due to kidney deficiency, edema, deafness, etc. The protein content of pork loin is extremely high, with protein 15.4g per 100g pork loin, which is a high-protein food. Protein is an important raw material for building and repairing the body. The development of human body and the repair and renewal of damaged cells can not be separated from protein, and protein has the function of tonifying deficiency and enhancing immunity. The human body needs a lot of heat to maintain daily activities and survival. Every 100g of pig kidney contains 3.2g of fat, which can provide the heat needed by human body. Moreover, some very important vitamins can only be absorbed by the human body with the help of fat, such as vitamins A, D, E, K and so on. So it is necessary to eat a proper amount of fat every day. Pig kidney is rich in minerals such as calcium, phosphorus, iron, potassium, sodium, magnesium, zinc and selenium, which can maintain acid-base balance, participate in energy metabolism, enhance physical strength, resist oxidation, fatigue and delay aging. Every 100g pig kidney contains 0.3 1mg vitamin B 1, 0.34mg vitamin B2 and 8mg vitamin B3. Vitamin B can participate in energy metabolism in human body, improve protein utilization rate, promote growth and development, strengthen liver function and regulate adrenaline. Lack of vitamin B may cause beriberi, oral ulcer, dermatitis, insomnia and other diseases.