Can eating walnuts really replenish the brain? When is the best time to eat walnuts every day? Attached efficacy and function

The nutritional value of walnut is extremely high, which is generally recognized and scientifically based. Walnut, also known as walnut, Qiang peach, belongs to the walnut family. Together with almonds, cashews and hazelnuts, they are called the world-famous "four dried fruits". So can eating walnuts really replenish the brain? When is the best time to eat walnuts every day? What are the effects and effects of walnuts?

First, can eating walnuts really replenish the brain?

The content of arginine in walnut protein is particularly high, up to 174 mg per gram of walnut protein, which is the highest in nuts and 6 times higher than that in milk and fruit. Arginine is not only nutritious, but also has a variety of unique physiological and pharmacological effects. One of its important physiological functions is as the raw material for the synthesis of endogenous nitric oxide in the human body. as a biological messenger in the human body, the latter plays a key role in the physiological and pathological regulation of cardiovascular, nervous, immune and other systems. for example, to maintain the normal functioning of the nervous system, we can regard it as a brain tonic (promoting sleep, improving memory and learning ability, etc.).

The content of polyunsaturated fatty acids in walnuts accounts for 76.2%, which can provide essential fatty acids needed by the human body; α-linolenic acid (18:3) in polyunsaturated fatty acids accounts for 12.2% of total fat, which is the highest in dried fruits. α-linolenic acid belongs to omega-3 fatty acids, which is transformed into 22 carbon hexaenoic acid (DHA) in the body, which is commonly known as brain gold. It is an indispensable substance to form brain nerve cells and retinal cells, and plays an important role in regulating attention and cognitive process.

Vitamin E, rich in walnut, is an antioxidant vitamin, which can remove lipid peroxides in the body, delay brain aging and prevent Alzheimer's disease. B vitamins, phospholipids and selenium in walnut play an important role in nourishing brain nerve cells and maintaining normal metabolic function. The non-nutritional components in walnut, namely phytochemicals, such as flavonoids and polyphenols, can protect the integrity of brain cell structure and function. From this point of view, walnuts really have the effect of tonifying the brain. By consulting the relevant data, the author found that there are several reports that walnut products (walnut powder, walnut extract, walnut oil, etc.) can improve the learning and memory of experimental animals.

In particular, there is no accurate definition of "tonifying the brain" in the scientific community. Ordinary consumers' expectation of "tonifying the brain" is that it can improve intelligence, quickly relieve brain fatigue, and enhance the ability to study and work. The main research areas of science are "development" and "aging" of the brain. This is not in line with consumer expectations.

The study found that long-term eating nuts such as walnuts can improve some indicators related to brain function, which is not the same thing as the expected "brain-tonifying" function of walnuts. So far, there is no direct research evidence that eating walnuts can improve people's IQ or test scores in the short term.

Second, the best time to eat walnuts every day

The best time to eat nuts such as walnuts is in the morning.

Chinese people seldom eat too much at breakfast, and most of them are in a state of insufficient nutrition. At this time, the supplement of walnuts can improve the quality of breakfast and improve the nutritional proportion of three meals.

On the other hand, after breakfast, people have a high level of metabolism and heavy tasks, and it is difficult for the food they eat to become fat deposits on their bodies, so eating a handful of walnuts for breakfast is often not in danger of getting fat. on the contrary, it suppresses the appetite for lunch. it's good for weight control.

Third, the efficacy and function of walnut

1. Promote brain development

Usually eat more walnuts, can absorb rich phospholipids, this substance is a necessary nutrient for human brain development, and the human body after absorbing rich phospholipids, has a good role in promoting intellectual development, it can not only improve memory, but also can significantly improve our thinking and response ability.

2. Reduce cholesterol and prevent hyperlipidemia

Walnut is also rich in unsaturated fatty acids, especially linoleic acid and linolenic acid, which can remove cholesterol accumulated in human blood and reduce the content of high-density lipoprotein in blood. It can dilute the blood and reduce blood lipids. It can also reduce the incidence of coronary heart disease.

3. Improve heart function

Walnut kernels contain a variety of natural antioxidant ingredients, especially flavonoids and trace element selenium are relatively high, these substances can not only protect the heart, improve heart function, but also nourish the heart and improve the contractile ability of the myocardium. Eating more walnut kernels can not only strengthen the heart, but also reduce the incidence of heart disease.

4. Prolong life and delay aging

Walnut is also a healthy food known as longevity fruit, it is rich in plant protein and a variety of vitamins and minerals beneficial to the human body, usually people can nourish the five internal organs and improve the function of various organs of the body. And it contains vitamin E and trace element selenium can improve the body's antioxidant capacity, reduce the production of free radicals, not only delay aging but also prolong life.