Can the "four dried fruits" walnuts really supplement the brain? How many are the best to eat a day?
Walnut, almond, cashew nut and hazelnut are also known as the world-famous "four dried fruits". Walnut is nutritious and is one of the nuts that people often eat. So, can walnuts really replenish the brain? How many walnuts are best to eat a day? What are the taboos on eating walnuts? How much is the market price of walnuts per jin? Let's get to know it.
Can walnuts really replenish the brain?
Walnuts have long been known as "tonifying the brain" because of their resemblance to the human brain, but can walnuts really tonify the brain?
Among the substances related to human brain development, DHA is considered to be related to human brain development. DHA is the abbreviation of DocosahexaenicAcid, commonly known as "brain gold", the Chinese full name is 22 carbon hexaenoic acid, but the study found that walnut almost does not contain DHA, there is no direct supplement to DHA function. But walnuts contain a lot of α-linolenic acid, which is a supplement to DHA.
Therefore, walnuts can not replenish the brain, it should be said that walnuts contain the nutrients needed by the brain, rather than "tonifying the brain". And among the many foods, there are many foods rich in α-linolenic acid and DHA, walnuts are not a necessity.
Although walnut can not directly replenish the brain, it is a good food therapy with rich nutritional value. Walnuts contain phospholipids, which have a good effect on brain nerve development. Walnut oil contains unsaturated fatty acids, which can effectively prevent and cure arteriosclerosis. Walnut also contains zinc, manganese, chromium and other trace elements. Walnut kernel also has antitussive and antiasthmatic effects, so eating walnut kernel can also improve chronic tracheitis and asthma.
Second, how many walnuts are the best to eat a day?
Walnut, as one of the four nuts, has a high fat content. If you eat too much without consuming it, you will hoard a lot of fat and put a burden on the body.
Experts suggest that generally speaking, the daily intake of walnut kernel should be about 20-40 grams, which is equivalent to about 4-5 walnuts. When taking walnuts, you should reduce other fat intake, strengthen exercise and avoid excessive fat hoarding.
In addition, from a nutritional point of view, walnuts can not be overtaken at one time, the correct way to eat should be appropriate, long-term use, in order to better play the health effect of walnuts.
Third, what are the taboos on eating walnuts?
1. Do not eat in large quantities
Walnuts are high in protein and fat, and taking too many walnuts at a time can lead to indigestion. Nutrition experts suggest that it is best to eat no more than 4 walnuts a day. While taking walnuts, you should reduce other fat intake and strengthen exercise to avoid excessive fat hoarding and high calories.
2. It is not suitable for patients with fever and diarrhea.
Walnut is warm and has a high oil content. If you eat too much, it will cause phlegm. Patients with yin deficiency, excessive fire, phlegm-heat cough, phlegm-dampness, diarrhea and other diseases should not eat more walnuts.
How much is the market price of walnuts per jin?
The following are the recent market prices of walnuts in some areas
Product Name
Market / region
Average price on October 09
Walnut
Jinxin melon and fruit wholesale market in Changzhi City, Shanxi Province
15.0 yuan / kg
Walnut
Taiyuan Hexi Agricultural and sideline products Market
40.0 yuan / kg
Walnut
Agricultural products Trading Center of Linshui County, Guang'an, Sichuan
28.0 yuan / kg
Walnut
Jinxin melon and fruit wholesale market in Changzhi City, Shanxi Province
15.0 yuan / kg
Walnut
Jingyuan County Wholesale Market of melons and vegetables in Gansu Province
5.0 yuan / kg
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