Science Behind Why Japanese Green Tea is Good for Health
by Kei Nishida
Green tea has been a favorite among the Japanese for centuries. It is said that in 805 Buddhist monks Kukai and Saicho returned to Japan with young tea trees after studying in China. In 1181, another Buddhist monk named Eisai had been studying in China. Eisai introduced and popularized the sipping of tea for optimum health. About the same time, farmers started growing green tea in Uji, Kyoto. The last health reference Japanese book of Eisai’s about tea was in 1211; Kissa Yojoki (the Book of Tea).
With the introduction of green tea to Japan, along came much of the knowledge of it many health benefits. And through the extended use, advanced cultivation and learning of its many discovered medicinal values, Japanese green tea has remained a greatly valued beverage and food.
Great Health Benefits
Rendering to WebMD, green tea is a widely studied tea that has high concentrations of epigallocatechin gallate (EGCG). Moreover, the antioxidants in green tea help combat cancer growth in the stomach, lungs, pancreas, breast and bladder. As well, the high antioxidant contents found in green tea may prevent the arteries from clogging. What is more, many studies find that this amazing tea may be able to burn fat, lower the risk of neurological disorders like Parkinson’s and Alzheimer’s, offset oxidative stress on the brain, improve cholesterol levels and lower the risk of stroke.
A Rich Antioxidant
Green tea is renowned for being rich in antioxidants, particularly epigallocatechin gallate (EGCG). In fact, many claim that this special antioxidant is what makes green tea have such powerful medicinal properties. Moreover, a recent post from Livestrong states that the epigallocatechin gallate in green tea may help lower total body weight and body fat levels. In fact, the fat burning antioxidant helps increases your body’s metabolism, especially visceral fat or fat that is in the abdomen. (Read more about green tea and diet effect in my other article)
Another beneficial substance found in green tea is L-theanine or theanine. This amazing amino acid is found naturally in green tea. It is said to support many health issues such as anxiety, insomnia, stress, depression, high cholesterol and high blood pressure.
What is more, theanine also shows promise as an aide for weight loss especially when combined with certain caffeine’s. In fact, theanine is often used as a supplement to shed pounds.
Polyphenols that are found in tea include tannins, theaflavins, catechins and flavonoids. And in green tea there are epigallocatechin, epicatechin gallates, epigallocatechin gallates and epicatechins. As well, green tea contains flavanols like myricetin, kaempferol and quercetin.
The polyphenols in green tea are said to have many health benefits like detoxing many vital organs and also preventing cancer. In fact, according to the National Cancer Institute, tea polyphenols have been shown to impede tumor cell proliferation and prompt apoptosis in laboratory and animal studies. As well, tea catechins have shown to obstruct tumor cell invasiveness and angiogenesis. (Read more about polyphenols in my other article)
Compared to other teas, green tea has about the lowest amount of caffeines (excluding non-caffeinated herbals teas). The highest is black teas and then white. However, caffeine content is also dependent on many variables like the brewing, type of buds and leaves and how the plant was grown. For example, how your tea is grown and packaged with affect the caffeines content. Teas grown is full sun have less amounts of caffeines than tea that is grown in the shade. Also, teas that are ground into powder, sliced or chopped will have a stronger dose of caffeines than the regular leaves. Additionally, the buds and leaves that are oftentimes used to make white tea have more caffeines than mature and older leaves.
As of late, a concern with some consumers is the fluoride in both green and black tea. Further, green tea has two times more fluorides than black tea. On the other hand, many experts agree that the fluoride found in tea is at such minuscule levels that it would be difficult to consume enough tea to be toxic. In addition, about 50 percent of any type of fluorides is excreted and the other portion is deposited in the teeth and bones. (Read more about this topic on my another article - Science Behind Why Japanese Green Tea is Good for Health)
In fact, Dr. Weil M.D. feels that the worries in regards to fluorides in tea are overstated. Although large amounts of the material can cause brittle bones after several years, but this is very rare. As well, fluorides are toxic in very high amounts which may cause gastrointestinal symptoms and sometimes death. For example, a large amount would be about 20,000 times more fluorides than what is found in an 8 ounce glass of water.
It is no doubt that historically Green Tea has been providing variety of health benefit and is believed to be one of the main reasons why Japanese people live longer and healthier compared to other part of the world. More recent study and researches reveals and confirms the benefit from different angles of science. We can enjoy all the benefit by simply having a good quality cup of Green Tea today and every day.
If you have ever thought that Green Tea is an “acquired taste” or that it is “too bitter” to enjoy, we’re here to change your mind! We want everyone to experience the health benefits of Green Tea and show you that this can be an amazing, refreshing, and delicious drink when made correctly. With just a few tips on how to brew this powerful leaf we can change your mind about the taste and enjoyment of drinking Green Tea.
We know that you will love this tips to brewing tea and getting the most flavor and elegance out of every cup. Sign up for our newsletter and get this great informative manual on brewing green tea. You will learn what it is that makes it one of the most popular beverages in the world.
The E-Book also includes the chapter of Kei Nishida's book, "Art of Brewing Japanese Green Tea" where he teaches you how to brew hot and cold Japanese Green Tea.
Tea is the most popular drink on Earth next to water. In around 80% of the world, most people prefer to drink black tea rather than green tea. Yet in Japan, green tea is the most consumed beverage, and it is a 6.95 trillion yen (7.8 billion dollar) a year industry. Green tea is embedded in the culture and day-to-day life since it was introduced by China in the 7th Century.
There are so much information about tea which is sometimes confusing. In this article, I will simply explain green tea focusing around Japanese green tea, how it came to Japan, what exactly is green tea and what are the benefit of drinking green tea in general.
Green tea is central to the lives of everyone in Japan. The culture surrounding the harvest and preparation of these tea leaves is complex and rooted deep in tradition. The green tea harvested in Japan differs in taste and value from the leaves gathered in China and other areas of the world. Here are 10 things about Japanese green tea harvesting you (probably) didn't know.
Green tea is prized for its health benefits, so wouldn’t an extract be even better? Green tea extract is a supplement derived from the green tea plant. The idea behind it is if you process and concentrate a healthy substance like green tea, its positive effects will be boosted. But As the age-old adage goes -- more is not necessarily better. Green tea extract can, in fact, have negative effects on your health. Here are 10 reasons why green tea extract is bad for you
Japanese Green Tea and Health Blog is collection of articles related to the health benefits of Japanese Green Tea. The blog is focused on scientific research related to Japanese Green Tea, and how it can help benefit people to live healthier lives. Japanese Green Tea is one of the most health beneficial beverages in the world, and its effects are being researched around the world.
Author : Kei Nishida
Kei Nishida, PMP is a writer, a Japanese Green Tea enthusiast, and the founder and CEO of JapaneseGreenTeaIn.com. With two books behind him and more on the way, this entertaining author brings his passion for Green Tea wherever he goes.
Kei’s love of Green Tea and passion for writing has helped make him a feature author on sites and Magazines such as Yoga Digest Magazine, T-Ching, Sexy Fit Vegan, and Woman’s Daily Magazine.
His enthusiasm for health and tea pushed him to developing his company, JapaneseGreenTeaIn.com, where he brings the very best in Japanese Green Tea to customers all over the world.
Kei grew up in Japan and moved to USA at the age of 14, now living in Portland, Oregon. In his earlier carrier, he was Software Engineer at Hewlett Packard Inc. Kei takes advantage of being bi-lingual in Japanese and English, as well as his science background for his research and writing. Information you find in his books and blogs are a combination of the best content and research from Japan and all around the world.
Books By Kei Nishida
I will Teach You How to Be Healthy By Using Japanese Green Tea
Dissolve 2 teaspoon of powder into 8 Oz of hot water. We recommend about 175°F for most common green tea.
Please note that our product page has different recommended temperature based on type of tea between 175°F- 185°F; however, 175°F can be the most common and standard temperature that would work for any type of our green tea.
Wait for 60-120 seconds (Please follow steeping guide on the product for specific time based on type of tea.)
Use mesh strainer to filter out the green tea leave and serve hot
Steeping Guide - Cold
Dissolve 3-4 teaspoon of powder into 30 Oz of cold water. For best result, use filtered water, bottled water. Alternatively, you can boil water and let it cool down until room temperature.
Keep in refrigerator for 3 hours or more.Key point is to use longer time to dissolve. This way, sweetness increases, and it does not break down theanine and vitamin C. For best result, let it sit for overnight.
Stair the water first, then use mesh strainer to filter out the green tea leave and serve cold.