Pig's trotters are delicious and nutritious food with high content of protein. In addition, pig's trotters also contain a certain amount of nutrients such as calcium, phosphorus, iron and zinc, so they have the effects of enriching blood, lubricating skin and strengthening waist and legs, and are very suitable for the elderly and people with blood deficiency and weakness. In human skin tissue, collagen accounts for 70%. With the increase of age, collagen is continuously lost, resulting in dry skin and wrinkles. A large amount of collagen in pig's trotters can promote skin cells to absorb and store water, keep cells moist and prevent skin from drying and wrinkling; At the same time, it can enhance the elasticity and toughness of skin and delay skin aging.

In addition, pig's trotters contain more glycine, which has a certain calming effect and can alleviate the symptoms of neurasthenia and insomnia that plague the elderly.

Old people suffering from arteriosclerosis, hyperlipidemia, hypertension and coronary heart disease might as well eat pig's trotters 1 ~ 2 times a week instead of other meats, which can not only satisfy their cravings, but also get enough collagen, but remember not to eat too much, otherwise it will easily increase blood lipids. Elderly people with chronic hepatitis, cholecystitis and gallstones should not eat pig's trotters, otherwise it will aggravate the condition or induce the recurrence of old diseases; Old people with weak gastrointestinal digestive function should eat 100g stewed pig's trotters every time. Eating too much can lead to indigestion.

In addition, when making trotters, you can add a little vinegar. On the one hand, protein in pig's trotters is easily digested, absorbed and utilized by human body; On the other hand, it can eliminate greasy and increase the flavor of pig's trotters.