The American Dietetic Association advises people to eat walnuts two or three times a week, especially middle-aged and elderly people and menopausal women, because arginine, oleic acid and antioxidants contained in walnuts can protect the cardiovascular system and have the same effect on preventing coronary heart disease, stroke and Alzheimer's disease.

Walnut is rich in lecithin, unsaturated fatty acids, and also contains a variety of antioxidants, such as vitamin C and vitamin E, which can fight against oxygen free radicals that make people aging. Walnut kernel looks like a human brain, so there is a saying that eating walnuts supplements the brain. This is because walnuts contain a large number of nutrients that can strengthen the brain and improve intelligence, such as lecithin, which has a good health care effect on the brain nerves and is very suitable for growing children and adults who often use their brains.

Walnut kernel contains zinc, manganese, chromium and other indispensable trace elements. The contents of zinc and manganese are decreasing in the process of aging, and chromium can promote glucose utilization, cholesterol metabolism and protect cardiovascular system. Walnut kernel also has a very obvious effect on relieving cough and asthma, and has excellent curative effect on patients with chronic bronchitis and asthma in autumn and winter. It can be seen that eating walnuts regularly can not only strengthen the body, but also resist aging. Some people often take tonics. In fact, it is really good to eat a few walnuts every morning and evening, which is often better than taking tonic. Be careful not to peel off the thin brown skin on the surface of walnut kernel when eating, which will lose some nutrients.

Traditional Chinese medicine point of view: Walnut is warm and can enrich blood, nourish yin and benefit qi. It is suitable for people with weak constitution and insufficient qi and blood, and is a good tonic. Nourishing secret recipe: Walnut is cooked with red dates, black sesame seeds, donkey-hide gelatin and rock sugar, and then cooked with slow fire until it becomes paste. It has the effects of promoting blood circulation, removing blood stasis, replenishing blood and invigorating qi, and is suitable for people with anemia and physical weakness. Among them, the role of rock sugar can not be underestimated, because the other four foods are warm, while rock sugar is cool, which can offset some warmth, so it is not easy to get angry when eating.

hazel

Among the "four major nuts in the world", hazelnut is not only eaten by people for the longest time, but also has the highest nutritional value, and has the title of "king of nuts". Hazelnut is rich in unsaturated fatty acids and protein, and the contents of carotene, vitamin A, vitamin C, vitamin E, vitamin B, iron, zinc, phosphorus, potassium and other nutrients are also considerable, occupying a dominant position among the four major nuts.

Although hazelnut is rich in oil, it is beneficial to human body, which helps to lower blood pressure, reduce blood lipid, protect eyesight and delay aging. Moreover, the oil rich in hazelnut is very beneficial to the absorption of fat-soluble vitamins by human body, and has a good nourishing effect on people who are weak, weak after illness and prone to hunger. Hazelnut has a natural aroma, and the more you chew it, the more fragrant it is. This is a very good appetizer. Hazelnut also contains paclitaxel, an anticancer chemical, which is the active ingredient in paclitaxel. This substance can treat cancers such as ovarian cancer and breast cancer, and prolong the life span of patients.

Traditional Chinese medicine point of view: hazelnut has the effects of tonifying spleen and stomach, benefiting qi and improving eyesight, and is quite beneficial to symptoms of deficiency of lung and kidney such as thirst and nocturia. Usually cooking or cooking porridge and soup are good. But hazelnuts are warm and easy to get angry when eaten too much. Generally speaking, it is more appropriate to eat a small handful (25~30 grams) five times a week. Nourishing secret recipe: put hazelnuts, lotus seeds and japonica rice together to cook "hazelnut lotus seed porridge", which is not only delicious, but also nutritious. Cancer and diabetes patients can drink more at ordinary times.

apricot kernel

A new study shows that people with normal or slightly higher cholesterol levels can use almonds (China almonds) to replace foods with low nutritional density in their diets, so as to lower blood cholesterol and keep their hearts healthy. In addition to being rich in unsaturated fatty acids, almonds also contain high levels of vitamin C and vitamin E, which makes the beauty function of almonds stand out. Of course, the contents of trace elements such as calcium, phosphorus and iron that are indispensable to human body in almonds are not inferior. Together, these nutrients can effectively reduce the risk of heart disease.

Traditional Chinese medicine point of view: Almond is the only cool thing among the four nuts, so it is very suitable for dry autumn.

Almond also has unique functions of relieving cough, moistening lung and relieving asthma, which can effectively deal with cough symptoms that often appear in autumn.

Nourishing secret recipe: Steamed meat with almond powder, that is, steamed meat powder in steamed meat is replaced with almond powder, then cooking wine, soy sauce and appropriate amount of salt are added, or rock sugar is added, and steamed in a steamer. This dish has the effects of clearing away lung heat, resolving phlegm, relieving sore throat and relaxing bowels.

Almond porridge: take 30 grams of almonds, 0/00 grams of rice/kloc, and add appropriate amount of water to cook porridge. This medicated diet has the effect of nourishing the heart and calming the nerves. Friends with insomnia and irritability may wish to have a try. Edible tip: Almonds can meet the needs of people of all ages, so there are not too many restrictions on eating. Generally speaking, eat almonds twice a week, one handful (30 grams) each time, about 20~25 capsules. Long-term eating will reduce the risk of heart disease or coronary heart disease by 50%.

cashew

Cashew nuts contain 2 1% protein and 40% unsaturated fatty acids, and are rich in trace elements such as calcium, phosphorus, zinc and iron, which have antioxidant, anti-aging, anti-tumor and anti-cardiovascular effects. The fat contained in it is mostly unsaturated fatty acids, of which oleic acid accounts for 67.4% of the total fatty acids and linoleic acid accounts for 19.8%, which is a good food for patients with hyperlipidemia and coronary heart disease.

Whether it is fried, salted or preserved, it is delicious and has a unique flavor. Compared with other nuts such as hazelnut, walnut and almond, the sugar content of cashew nuts is relatively high, accounting for about 25% of the total nutrients, while the sugar content of hazelnut is 15%, almond is 10% and walnut is only 8%.

Therefore, obese and diabetic patients must be careful to eat. Traditional Chinese medicine point of view: cashew nuts are sweet, flat and non-toxic.

It is recorded in "Herbal Supplement" that cashew kernel moistens the lungs, removes annoyance and eliminates phlegm. In addition, cashew nuts can also strengthen the spleen, and friends with poor spleen and stomach will have a good health care effect if they eat them regularly.

Edible reminder: cashew nuts are easy to be allergic when eaten too much. Allergic friends should eat them carefully.

Nutrition knowledge:

It's safer to eat fried.

According to experts from Kang Hua Hospital, raw nuts generally contain a lot of plant acids, one of which is called tannin. People who eat too much will have adverse reactions such as vomiting, bloating, loss of appetite and even shortness of breath. However, the plant acid content in dried fruits or fried nuts will be greatly reduced, so it is safer to eat. Raw almonds also contain toxic components, but the toxicity will be much reduced after frying. Of course, the frying time should not be too long, so as not to destroy the vitamins and other nutrients in nuts due to long-term heating. But frying nuts is not recommended, because nuts are already rich in vegetable oil, which will be more greasy after frying, difficult to digest and unhealthy, and will be delicious after crushing.

Nuts are rich in vegetable oil and protein, which are often difficult to digest and easy to get bored. Therefore, in order to make nuts better serve our health, we might as well make more efforts in eating. For example, when making cakes, you can crush nuts and put them in, or add them to milk, yogurt and ice cream to make nut milk and nut milk. In addition, you can also use broken nuts as seasoning, and sprinkle some when cooking, soup and porridge, which can not only increase the flavor of dishes, but also make people's appetite open, and you can eat nuts and supplement nutrition, killing two birds with one stone.