1, according to the physique to choose.
(1) expectant mother: walnuts and pine nuts. Unsaturated fatty acids are necessary for brain development. Nuts contain a lot of unsaturated fatty acids, and vitamins B 1, B2, B6, vitamin E, calcium, phosphorus, iron, zinc and other nutrients beneficial to brain nerve cells. Walnut, in particular, is also called "plant fish oil". Walnut is rich in DHA, which can promote the development of fetal brain, which requires the mother to supply more DHA to the fetus. The American Dietetic Association advises people to eat walnuts two or three times a week. Eating nuts is very beneficial to improve the nutrition and memory of nerve cells, especially suitable for pregnant women, children and the elderly. In addition, nuts such as walnuts and pine nuts contain more α linolenic acid, which not only has an important influence on the development of fetal brain, but also plays an important role in the maturity of retinal photoreceptors.
(2) People with hyperlipidemia: walnuts, pine nuts, hazelnuts, almonds, pecans and pistachios. Unsaturated fatty acids can reduce triglycerides and cholesterol in blood, and most of the fat in nuts is unsaturated fatty acids. Some nuts contain a lot of monounsaturated fatty acids, such as hazelnuts, almonds, pecans and pistachios. Monounsaturated fatty acids can not only reduce blood lipid and prevent cardiovascular and cerebrovascular diseases, but also are not easy to be oxidized and deteriorated. In addition, nuts are rich in lecithin, dietary fiber and polysaccharide, which also has the function of lowering blood fat. Many studies have proved that some components in nuts have antiarrhythmic effects. Compared with people who seldom or never eat nuts, people who eat nuts twice or more a week have a lower risk of death from coronary heart disease.
(3) Beauty-loving women and sub-healthy people: sunflower seeds, walnuts, ginkgo biloba and almonds. Free radicals are "natural enemies" of women who love beauty, and also "accomplices" of aging and diseases. Studies have proved that the occurrence of chronic diseases in modern people is mostly related to the destruction of free radicals. Today, the natural environment has been seriously damaged, and the antioxidant capacity of the body itself is not enough to eliminate the increasing number of free radicals. Studies have shown that some nuts, such as sunflower seeds, walnuts, ginkgo biloba, almonds, etc., are rich in vitamin E and have a strong ability to scavenge free radicals, thus preventing the occurrence of chronic diseases and premature aging of the body.
(4) Patients with poor gastrointestinal function: peanuts, hazelnuts and China almonds. Many nuts (such as peanuts, hazelnuts and China almonds) are high in dietary fiber, and also contain oligosaccharides and polysaccharides. Dietary fiber and polysaccharide can not only reduce blood fat and blood sugar, but also reduce harmful bacteria in intestine and promote the proliferation of beneficial bacteria, thus protecting gastrointestinal mucosa and improving immunity.
(5)B vitamins deficiency: peanuts and pistachios. Some people often have peeling hands, heavy breath, repeated beriberi or frequent oral ulcers and can't find out the reason. Doctors usually prescribe vitamin B supplements for them, and usually their symptoms will be relieved. For people who lack B vitamins, they can also supplement them by eating nuts.
These people are not fit to eat.
(1) Diarrhea: Nuts are also rich in a lot of oil and have a strong "moisturizing effect". People with diarrhea, acute digestive tract infection and fat indigestion should temporarily avoid eating nuts.
(2) Patients with throat diseases: Nuts are generally roasted and fried, and salt can easily cause tooth decay and delayed drying. Patients with pharyngitis and oral ulcer can consider raw nuts or cooked nuts.
(3) Allergic people: Very few people are allergic to nuts, causing skin itching, throat edema and other reactions, and such people should be prohibited from eating.
3. Pay attention to these when eating nuts
(1) In moderation, nuts contain high energy, which is difficult to digest if eaten too much, and can also lead to obesity. It is recommended that each person eat no more than one handful of nuts with shells every day.
(2) Choose the original, because the original food is not easy to fake. For example, there is a merchant selling melon seeds. There are two sacks of melon seeds in the warehouse, which smells musty. If you lose them, it'll only be ten or twenty thousand yuan. Can you sell it if it is original? I can't. Then it can only be made into milk tea flavor, salt flavor and so on. The stronger the fragrance, the more it can cover up the musty smell, which is the most suitable way for businessmen to fake, so choosing the original flavor can avoid risks.
(3) choose less openings, such as pistachios, and have no choice but to open the original ones. Nut shells can play a very good protective role. After opening, firstly, it is easy to get dirty; Second, it is easier to breed bacteria; Third, oil is prone to oxidative rancidity; Fourth, it is easy to be adulterated. In order to increase the weight, some merchants fry nuts with salt (a kilo of salt is much cheaper than a kilo of nuts), and the salt enters the crack of the shell, which makes the taste good and the weight increase, resulting in both fame and fortune. For consumers, they have paid a high price for high-salt food. Or buy less.
(4) If you eat moldy or bitter nuts, you must spit them out. Don't be reluctant to part with them, because moldy or bitter nuts are likely to contain aflatoxin, which is 68 times more toxic than arsenic! Eating in large quantities will lead to death, and eating in small quantities for a long time will induce liver cancer, which will increase the risk every time.