"How do you buy walnuts like purchasing goods. Eating too much is not good for your health." Grandma Wang selected a large bag of walnuts in the supermarket, and Grandma Li, who was traveling with her, couldn't help asking.
"This walnut is a good thing. My grandson just went to elementary school. Eat more walnuts to nourish the brain to make you smarter . And this walnut is good for blood vessel health. My wife has "three highs". Eat more to prevent blood vessel blockage." Grandma Wang said with confidence.
"You are afraid you were cheated. Walnut Fat So much, it can only accelerate blood vessel blockage!"
The two of them said one by one, and they started a fierce debate, but in the end they did not tell who was right or wrong. Grandma Wang still bought a large bag of walnuts. Grandma Li shook her head helplessly and said that she didn't know the good people's hearts.
Walnuts are not only fragrant but also very nutritious, so they are deeply loved, but there are many debates about whether walnuts are healthy.
Today, let’s learn about the right and wrong of walnuts.
1. " to replenish shape " Can eating walnuts nourish the brain?
Walnut is one of the most common nuts in life. Because its appearance is very similar to that of the brain, it has been derived that eating walnuts can nourish the brain. Is this statement really credible? Before we understand this problem, we need to know what is inside the walnut?
A walnut contains protein , fat, omega 3 fatty acids, vitamin E, polyphenol , magnesium, calcium and other substances.
Many studies in the medical community have pointed out that increasing the intake of nut foods such as walnuts is helpful for improving the cognitive abilities of middle-aged and elderly people. The α-linolenic acid in walnuts can be converted into DHA after entering the body, which is beneficial to brain development and brain health. From this perspective, walnuts do have certain advantages in nervous system .
So does this mean that eating walnuts can nourish the brain?
In fact, what is said here is beneficial to the brain, and it is essentially different from what everyone knows that eating can improve IQ and memory. Although walnuts are good for the brain, their effects are relatively limited. They cannot become smarter after eating them. You cannot blindly rely on eating a lot of walnuts to improve your intelligence. "Replenishing the shape with shape" is unscientific.
The truly effective brain-nourishing method should be to ensure that the body can intake sufficient nutrition, rest reasonably and conduct appropriate brain training, which are of great benefit to brain exercise.
2. Is walnut a "blood scavenger"? Why do some people say that eating walnuts is not good?
Walnut is known as "longevity fruit". Some people call it "blood scavenger" . Eating more is good for health, but some people say that walnuts have high fat content and are prone to block blood vessels. They believe that walnuts are "death talisman" .
Does walnut have any effect on blood vessels? Is it good or bad to eat walnuts? Research will tell you the answer.
A study was published in the Journal of the American Society of Cardiology . After a 32-year follow-up of 210,000 people, it was found that long-term intake of high-fat, high-fat, high-sugar and rich in red meat will significantly increase the risk of heart disease and stroke in the body.
and eat anti-inflammatory diet, including vegetables, whole grains and nuts, is of great help in reducing inflammation and cardiovascular disease.
In Nutrients, an observational study conducted by Harvard University found that compared with those who never eat walnuts, the risk of death from cardiovascular disease decreased by 25%.
A study in the British Medical Journal said that walnuts can promote the growth of intestinal probiotics, help improve intestinal health, and help reduce the risk of cardiovascular disease.
Therefore, eating walnuts in moderation is beneficial to cardiovascular health.
3. Although walnuts are good, they are not suitable for everyone
It should be noted that walnuts are good, they are not suitable for everyone. These four groups of people advise you to eat less walnuts.
sputum and heat cough patients: walnuts are warm foods. Some people who often cough with a lot of phlegm and get angry in their lives. Eating walnuts will aggravate their symptoms and may further cause swollen and painful gums, oral ulcers, etc.
Obese people: The fat content in walnuts is very high. For people who are obese, it is recommended not to eat it, otherwise it will easily increase your weight.
patients with liver disease : The rich fat in walnuts needs bile to help digestion when entering the body. For patients with liver disease themselves, digesting walnuts will cause increased burden on the liver, which is more harmful to their health.
People with loose stools and diarrhea: Because walnuts have a rich oil content, for people who are prone to diarrhea, eating walnuts can easily make their symptoms worse.
4. How to eat walnuts to benefit the most?
So, for ordinary people, how should we eat walnuts in daily life?
First of all, the amount of walnuts you eat every day should not be too much. It is recommended to consume 50~70g of nuts per week. Convert to about ~3 walnuts per day . Eating too much walnut may cause a strong sense of fullness and cause a loss of appetite.
Secondly, you should also choose the right time to eat walnuts. It is generally recommended to eat in the morning as a good time . Because walnuts have rich oil and less consumption at night, eating walnuts can easily accumulate these calories in the body, which will cause obesity.
In addition, try to to eat now, it is best to choose original flavor . It is not recommended to fry or over-grill. When eating walnuts, the outer skin of is edible . This layer of brown skin contains a variety of phenols and flavonoids phytochemicals. Although it has a bitter taste, the more astringent the taste, the stronger the antioxidant capacity. The more astringent the skin of , the more nutritious it is.
Finally, walnuts should be stored in a dry and ventilated place. Once walnuts are found to be damp and moldy, they should be discarded in time to avoid the production of mycotoxin , which is harmful to health.
Walnuts are one of the common foods in life and can be eaten appropriately for most ordinary people, which is beneficial to blood vessel health. However, if it is a special group, you should pay attention to eating as little as possible or not.
. Don’t be too superstitious about walnuts nourishing the brain. No food can be achieved. Eating it can make people quickly improve their intelligence or enhance their work ability. The nutritional ingredients in walnuts are not unique to walnuts, and you cannot blindly exaggerate the role of walnuts. #Health Science Popularization Competition#
Reference materials:
[1] "Eat 30~60 grams of walnuts every day to reduce the risk of cardiovascular disease! Authoritative journals reveal the mechanism behind it. Life Times. 2021-02-10
[2] "Can you live ninety-nine if you keep your walnuts away from your mouth"? Harvard team adds new evidence! 》.China Biotechnology Network.2021-08-23
[3] "The truth is here! Can eating walnuts nourish the brain? Don't eat like this, read it quickly...". Popular Science China. 2019-10-25
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