Some teas and herbs have always been grateful for their so-called health benefits, but what does this study say?
Kakuzo, a Japanese scholar, wrote in the infamous Book of Tea published in the19th century: "Tea was originally a medicine, and later developed into a drink."
Finally, he talked about the history and tradition of Japanese tea ceremony.
Kakuzo is right: modern research on the history of world tea drinking confirms that this kind of drink originally consumed less auxiliary for entertainment or mindfulness, and called on drinkers to sip slowly and live in the present.
On the contrary, as shown in the picture, Victor Henry taught more about the real history of tea from the University of Pennsylvania in Philadelphia, as early as its development history, and the popular medicinal value of tea trees.
The main varieties of tea trees are tea tree making and tea tree making-responsible for the brewing of most tea leaves. We are used to it: black tea, green tea, white tea and oolong tea.
There are many other types of teas and infusions that use various other plants, such as Doctor Tea, which is better called "Loebs" or "redbush". "In this focus, we will give you an overview of five teas that are good for your health.
1。 green tea
People who like tea abound, and the medicinal value of green tea has been praised for many years. Some recent studies have confirmed some of these benefits, which shows that green tea can protect all aspects of our health.
Green tea can improve cognitive function.
First of all, this drink can improve cognitive function, and a study has linked it with better working memory used in our daily life.
Researchers at the Swiss university of basel Hospital found that healthy people agreed to drink a drink containing 27.5 grams of green tea extract, which indicated that the activities in brain regions related to working memory were more intense.
Therefore, participants' intake of green tea extract is best connected between the frontal lobe and the parietal lobe of the brain, which are involved in learning, memory and decision-making.
The health benefits of green tea have always been related to the antioxidant properties of polyphenol trace elements in its content. As antioxidants, these substances can prevent the action of free radicals, and the types of cell damage are consistent with aging.
20 17 A study published in the Journal of American Chemical Society found that the amyloid plaque of polyphenols in green tea, a low-risk disease called catechin Alzheimer's disease, interacted with "building blocks".
The accumulation of these plaques is typical in the brain and will destroy the signals of brain cells. This study shows that catechol gallate can prevent the formation of amyloid plaques and help to prevent Alzheimer's disease.
The same green tea polyphenols also say that the growth of tumors will slow down some types of cell cancers, such as pancreatic cancer.
This study was conducted by the Institute of Biomedicine in Los Angeles, California. It showed that catechins disturbed the metabolism of pancreatic cancer cells, thus affecting their growth.
2。 Jasmine Tea
We call it "jasmine tea", which is a drink. There is green tea in the base, and jasmine adds rich aroma.
Jasmine tea is an important part of diet and one of the longest-lived people in the world.
However, the benefits of jasmine tea are not only due to the antioxidant effect of tea tree, because jasmine also has its medicinal value.
In the book The Value of Life: Hector's Secret of a Long and Happy Life in Japan, the authors Garcia and Francis pay attention to the health and longevity of the residents of Sanpin Tea Community in Okinawa, Japan, which is a special mixture of green tea and jasmine.
"Okinawans drink more three-grade tea and jasmine tea than any other tea," they wrote, suggesting that this mixture may have played a role in Okinawa residents' health and quick thinking in the elderly. This may be because, like tea trees, jasmine contains antioxidants, which can protect cells from age-related damage.
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Jasmine itself is associated with improving health and reducing the effects of stress. This is why some researchers try to use this plant compound to find a better treatment.
For example, Eliezer Flescher, a professor at Tel Aviv University, noticed that methyl jasmonate jasmonic acid was an obtained compound, and found that jasmine plants induced the death of cervical cancer cells.
If you happen to like jasmine tea, because you like its taste, it's for good reason. The study, published in the European Journal of Applied Physiology, explained that jasmine tea has a soothing taste, which can calm the nerves and help regulate emotions.
Three performances. South Africa doctor tea
Another kind of tea has antioxidant properties. Ruyi Doctor Tea is a kind of plant prepared from Loeb or "red shrub tea", which is native to South Africa.
South African doctor tea can protect liver health.
Studies have shown that the antioxidant effect of Lloyd's is similar to that of green tea, if not so strong.
A recent mouse model study shows that Dr. Tea, an antioxidant in South Africa, can protect the liver from oxidative stress and help make this organ more resilient to injury.
In this study, 70% of researchers pointed out that their findings indicated that South African doctor tea or dietary supplements derived from rooibos may provide beneficial health promotion.
The results of this study indicate that daily intake of unfermented basil herb tea or derived commercial basil supplements may be beneficial to human health, provide antioxidant capacity for the liver and reduce the damage caused by poisons. "
In addition, Loeb is also considered to help lower blood pressure and relax tense muscles, which indicates that in this case, the active ingredient may be flavonoids (pigments), which include: chrysoeriol.
Unlike green tea or black tea, Lloyd's does not contain any caffeine, so it will not have the same stimulating effect. It's safe to drink at night.
Four performances. Furong tea
People who like refreshing sour beer can also use the familiar herbal tea Hibiscus. The flowers of this plant can not only make energetic drinks, but also provide subtle "perforated" salads or serve as complex and elegant decorative dishes.
Furong tea is an antioxidant, which can bring cardiovascular benefits.
The most commonly used variety, Roselle, is also called "Luoshenkui."
Our tea-or, more correctly, "herbal tea" (herbal tea)-is usually used for its calyx, although plants in other areas, such as leaves, seeds and roots, are safe to eat.
Studies have shown that the extracts of hibiscus calyx and hibiscus leaf have antioxidant and antitumor effects.
Therefore, they can prevent the action of aging free radicals at the cellular level and fight against certain types of leukemia cells.
Hibiscus tea is also beneficial to cardiovascular system, such as systolic and diastolic blood pressure, which helps to regulate blood pressure, that is, blood pressure between blood pressure and heartbeat.
Although tea is not commonly used, hibiscus leaves are also associated with repeated and extensive health benefits. Therefore, polyphenols in hibiscus leaves are helpful to induce tumor cell death and skin cancer.
Another study in the same year also believed that hibiscus leaf extract could significantly inhibit the effect of prostate cancer cells.
5。 verbena
The medicinal value of another herbal tea is increasingly recognized, and the scientific name of lemon verbena is Aloysia citrodora.
Injection of lemon verbena helps weight management.
Cousin's famous citrus-flavored factory has been used for herbal tea for many years: verbena and verbena.
Like me, lemon verbena is very good for those who prefer delicate orange-flavored hot drinks to the strong lemon-flavored commercial citrus tea mixture.
The first time I saw this plant as herbal tea, it was sold as "slimming tea" in a local organic shop.
In fact, studies have shown that polyphenols in this plant reduce the formation of fatty acids, which indicates that it may be used to treat obesity-related health problems.
The researchers also pointed out that lemon verbena extract can help reduce the level of inflammatory markers in the blood of some patients with multiple sclerosis.
"The results show that supplementation of lemon verbena extract may affect the distribution of cytokines (inflammatory markers) according to clinical subtypes," the study authors concluded.
Drinking a cup of your tea, or herbal tea, may be a pleasant way to explore some self-indulgence time and stimulate your physical and mental health in a subtle way.
But always remember, as the saying goes, "One swallow does not make a summer", the most effective medical benefit is the best harvest, leading a healthy and healthy lifestyle.
Matcha is a kind of powdered green tea used in Japanese tea ceremony. It has recently appeared in various drinks, desserts and other forms in the United States. It is considered to have many benefits to health.
Most green tea is used for brewing. The water we drink soaks the tea leaves. Matcha is ground into powder, mixed with hot water, and we eat leaves.
Studies have shown that green tea provides antioxidants and is good for health. There is evidence that matcha green tea provides more concentrated at least one antioxidant.
This feature article is part of a collection of articles on many healthy and popular foods.
It focuses on the nutritional components and possible health benefits of matcha, how to use matcha, and any potential health risks.
Fast fact matcha:
Matcha is green tea powder used in Japanese tea ceremony. There is a mature taste. It is considered to be healthier than green tea and a good source of antioxidants. More research is needed to prove its benefits. Matcha can be added to cakes, desserts, granola bars, and matcha lattes.
What is matcha?
Matcha is green tea powder, which may or may not have special health care effect.
Matcha is Japanese green tea used in traditional Japanese tea ceremony. Powder and tea taste smooth and round, and should not hurt. Stir the tea leaves with hot water, and the tea leaves should be foamed. Its color is bright green.
Matcha is made from a special kind of tea tree. This produced a kind of tea called Tiancha. Tencha took some time to partially make up for the growth. This technology will increase the amount of chlorophyll it contains and give it a bright green color.
Matcha is made by removing stems and veins from the leaf powder left by Tiancha stone mill.
Matcha has different grades. Formal grade is the highest quality, used in tea ceremony. Excellent products are suitable for daily consumption. Matcha cooking is the cheapest. Can be added to dessert.
Health welfare
Some studies show that green tea is good for health. Because matcha is concentrated green tea, it has always been thought that the benefits of green tea will be obtained by matcha, and may be stronger.
So far, there is little evidence to support this statement.
Concentration and cognition
Theanine is an amino acid found in tea. It promotes the relaxation and happiness of a country. Combined with caffeine, it can induce a state of relaxation of vigilance.
This study shows that L- thiamine can identify and antibacterial benefits.
People find that it can improve relaxation, tension and calmness. Caffeine can improve performance, attention, memory, attention and alertness.
Some supporters believe that the theanine content of matcha is five times that of other types of tea, but there seems to be no research to support this.
Anticancer properties
Green tea contains an antioxidant called catechin, especially catechin (EGCg), which has anti-tumor properties.
A study found that the EGCg content in matcha green tea is at least three times that of other green teas under study.
EGCg may help to prevent cancer DNA damage and inhibit the proliferation of tumor cells.
What chlorophyll brings to green plants. To study the higher chlorophyll-related consumption and lower incidence of aflatoxin-related liver cancer.
Matcha is green because it is rich in chlorophyll.
Type 2 diabetes mellitus
Some studies show that people who drink green tea have a lower risk of developing type 2 diabetes than those who don't drink tea. Others have not found a link between drinking tea and diabetes.
No research has focused on the link between matcha and diabetes.
heart disease
A study published in the Journal of the American Medical Association in 2006 concluded that drinking green tea is related to reducing mortality from cardiovascular diseases and other causes, but not cancer.
More than 40,000 Japanese participants aged 40- 79 were studied 1 1 year, starting from 1994.
Those who drink at least 5 cups of green tea a day greatly reduce the risk of dying of cardiovascular diseases, especially those who drink less than 1 cup of tea a day.
Another study concluded that catechins in green tea have antihypertensive and antithrombotic effects, and can reduce blood lipids.
Scientists have found that eating 10 cup of green tea every day can reduce total cholesterol. However, drinking 4 cups or less has no effect on cholesterol levels.
Matcha has not been studied in this way, but it may have similar or stronger effects.
nutrition
There is not much research on direct matcha, and searching a database of the United States Department of Agriculture (USDA) has not revealed any nutritional components of matcha.
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use
Traditionally, a teaspoon of matcha powder mixed with a third glass of water is hot, but not boiling, and is used for making tea.
Matcha latte is green tea, matcha and milk tea.
People are more and more interested in matcha, which leads to new ways of using it.
One suggestion is to mix hot tea or iced tea with a teaspoon of matcha powder and a third cup of hot water and drink it because it is or is poured on ice.
Here are some ideas:
Add milk foam matcha latte, add matcha powder milkshake oatmeal mixed matcha powder, use homemade granola roll matcha with matcha simple salad dressing, and add a little oil, vinegar and sweetener.
The following healthy and delicious recipes are made by registered dietitians:
Matcha green tea latte popsicle
Orange matcha iced tea
Matcha green granola roll
Matcha can be found in health food stores, specialty tea shops and online. Make sure the only ingredient is matcha powder. Many packages or premixes add sugar, artificial sweeteners or other unnecessary ingredients.
With the increasing popularity of matcha, its characteristics can sometimes be found in cafes and coffee shops. You can add a lot of sugar. If you can, check the label or ask if the sugar without sugar is orderly or slightly sweet.
Possible risks
Matcha has not been widely studied, and it is not clear what benefits or possible risks it has.
In one study, drinking a lot of green tea was related to the reproductive problems of fruit flies. However, it is not clear whether this will have the same impact on human beings.
The influence of radiation was also put forward 20 1 1 year after the Fukushima nuclear accident. This website's comments on matcha recommend checking where matcha comes from and the radiation situation in this area.