Extended data:
Pig's trotters refer to the feet (hooves) and calves of pigs, also called Yuan's trotters in China. In the Chinese world, trotters are often eaten by people, and there are many different cooking methods.
Pig's trotters are rich in collagen, and the fat content is lower than that of fat. It can prevent skin dryness and wrinkle, enhance skin elasticity and toughness, and has special significance for delaying aging and promoting children's growth and development. Therefore, people call pig's trotters "beauty food" and "delicious food similar to bear's paw"? .
Nutritional value:
Pig's trotters are good nutrients that people like to eat. Chinese medicine believes that pig's trotters are flat and sweet. Has the functions of tonifying deficiency, nourishing kidney and strengthening knees. Modern nutrition research shows that pig's trotters contain more protein, fat and carbohydrates, as well as calcium, phosphorus, magnesium, iron and vitamins A, D, E and K, etc. It is rich in collagen and has a good therapeutic effect on senile neurasthenia (insomnia).
Collagen in pig's trotters is composed of many amino acids, and there is one glycine in every three amino acids. After eating pig's trotters, collagen can be digested into a large amount of glycine in human small intestine, which can not only participate in the synthesis of collagen in human body, but also be the central nervous system inhibitory transmitter in brain cells, which has a sedative effect on the central nervous system.
Therefore, eating pig's trotters is conducive to reducing the excessive excitement of the central nervous system and improving symptoms such as anxiety, neurasthenia and insomnia.
In addition, glycine also exists in the intermediate neurons of human spinal cord. When the intermediate neurons are destroyed, glycine needs to be supplemented. Glycine can inhibit the excitability of motor neurons and intermediate neurons in spinal cord, and can cause hyperfunction of spinal cord neurons. Therefore, eating pig's trotters rich in glycine has a positive effect on regulating the functional activities of normal secondary neurons.
Because glycine contained in pig's trotters has a calming effect on the central nervous system, it is also found that some people often have cramps or numbness in their calves, and there are spasms caused by certain drugs. Eating pig's trotters soup often also has a certain dietotherapy relief effect.
References:
Baidu encyclopedia-pettitoes