Analysis: All kinds of aging phenomena of human body, such as hair whitening, tooth loss and various cardiovascular diseases, are all related to insufficient manganese intake. Studies have found that manganese deficiency will not only affect the normal development of bones, but also cause bone pain, hunchback weakness, fractures and other diseases. Moreover, manganese deficiency can also lead to mental retardation and ineffective induction. Although some vegetarians contain manganese, it is difficult to be absorbed by the human body; On the contrary, although meat contains less manganese, it is easily absorbed and utilized by the human body. Eating meat properly is an important way for the human body to absorb manganese, and the elderly should also eat some meat properly.
Besides beans, which are rich in protein, the nutrients in other vegetarian foods are not comprehensive, and some of them have not been absorbed by the human body. In order to have abundant energy, you must eat proper protein and fat every day, and vegetarian food can just supplement this deficiency.
Tips: The ancients recorded that "five grains are the nourishment, five riches are the benefits, five fruits are the help, and five dishes are the stuffing", which means that the food needed by the human body is not single, and it must be eaten together with meat, cereals, fruits and vegetables in order to live a long and healthy life. Therefore, the most ideal diet for the elderly should be a balanced diet with both meat and vegetables.
Solve the problem: Q: What proportion should the elderly follow in their daily diet?
A: Nutritionists believe that neither vegetarian food nor meat food is as comprehensive as omnivorous food. The combination of meat and vegetables and the appropriate proportion can lead to health and longevity. The reasonable dietary structure of human beings is that the ratio of cereal beans, vegetables, fruits and meat is 5:2: 1, that is, the optimal ratio of plant food to animal food is 7: 1.