^ Jump up to: a b Johnson R, Bryant S, Huntley AL (December 2012). "Green tea and green tea catechin extracts: an overview of the clinical evidence". Maturitas (Review). 73 (4): 280–7. doi:10.1016/j.maturitas.2012.08.008. PMID 22986087. In conclusion, whilst there is a considerable body of evidence for green tea with some of it suggesting a positive effect, it is difficult to be definitive as to its health benefits.
Matcha (抹茶, Japanese pronunciation pronounced [mat.tɕa], English /ˈmætʃə/[1][i]) is finely ground powder of specially grown and processed green tea leaves. It is special in two aspects of farming and processing: the green tea plants for matcha are shade-grown for about three weeks before harvest and the stems and veins are removed in processing. During shaded growth, the plant Camellia sinensis produces more theanine and caffeine. The powdered form of matcha is consumed differently from tea leaves or tea bags, and is dissolved in a liquid, typically water or milk.
Matcha green tea in America is consumed in a more casual way, but it’s good to keep in mind the traditional Japanese tea ceremony from which the mindfulness of Matcha has its roots. The idea that every encounter is unique and can never be reproduced is represented by the Japanese saying “ichi-go-ichi-e” (“One time, One meaning”). In terms of drinking Matcha green tea, it means that each particular occasion and experience can never be replicated and, therefore, should be treasured.
The risks associated with green tea are the same as those associated with any other kind of tea (common black tea, White Tea etc.) and are primarily due to the content of caffeine and tannin. The contraindications may vary with the percentage of caffeine and tannins in it. Most people might be familiar with these adversities, but it is still important to review and summarize the components responsible, as well as the associated risks.
Matcha tea has antioxidants such as catechins – EGCG (epigallocatechin gallate), which detoxifies the body. A research study assessing the antioxidant power of this tea has revealed that as compared to other green teas matcha has the highest amount of EGCG. These antioxidants seek out for the oxygen free radicals and neutralize their harmful effects. Thus, protecting the body from the occurrence of disorders or inflammations associated with the oxidative stress.

Green Tea comes from Camellia sinensis leaves that are immediately steamed or pan-fired rather than being exposed to air so that no oxidation occurs.   This special handling makes for a more delicate brew that is typically lower in caffeine than black and Oolong teas.  Although amounts vary, green teas are highest in polyphenols known as EGCG, which is why so many make it part of their healthy lifestyle.
Green, black, brown and now, red! No, these aren’t just some colors on the palette of your paint box. They are hues in the world of tea. The latest addiction and addition to the list being the 'red' tea, all the way from South Africa. We are talking about the Rooibos tea. What makes Rooibos tea so popular is the fact that it is known to have 50% more antioxidants than those found in green tea. Rooibos is obtained from Aspalathus Linearis, a shrub native to the Cape of Good Hope.
It is a natural, organic green tea which has been the heart of the famous Japanese tea ceremony for over 900 years. The Buddhist monks honored matcha tea as the ‘health elixir’ for its potential to heighten the concentration and enhance metabolism. Originating in China in the 9th century, this was used as a drug for curing various ailments. However, its word somehow got elapsed in China. It was only after the Zen Buddhist monks from Japan realized its true potential at the end of the twelfth century, the perfection in the cultivation of these leaves picked up. Matcha is still scarcely grown accounting for just 0.6% of total tea yield.
The next morning, I had a bagel and one daily tea, as instructed. I felt my stomach become uneasy as most stomachs do when they’re working their “digestive magic.” Suddenly, the worst cramp of my life hit me out of nowhere. It was the sharpest PANG I’ve ever felt as it made its way from my stomach to my chest. As a reflex, I jumped up. That’s when I felt another wave of pain and swiftly made my way to the restroom.
One of the primary reasons for the popularity and consumption of all kinds of tea by human civilizations is its stimulating effect. This effect, again, is due to the caffeine and tannins present in the tea leaves. Caffeine and tannins, despite their potentially adverse effects on health, in the long run, act as very powerful stimulants. That is why a cup of tea makes you feel fresh and highly energized. Tea is an easy and ideal solution to counter fatigue, laziness, sleepiness, and lack of energy, and to improve blood circulation. This is why it is so popular with a wide variety of people in various industries, including professionals, housewives, students, and anyone else who has ever felt a bit drowsy during the day!

It’s important to point out that while it might be very beneficial, drinking green tea alone likely won’t improve your life span or protect you from disease. Research suggests that a combination of lifestyle components account for the health benefits observed in people that drink tea. The problem with many studies that investigate the effects of green tea is that they are population studies rather than controlled clinical studies, according to the Mayo Clinic. In many of these studies, other lifestyle factors and habits besides drinking green tea are not well-controlled, so it’s difficult to draw conclusions. Overall, studies have found a great number of health benefits of green tea, especially as it relates to anti-aging, but the bottom line is that the quality of your overall diet is really what’s most important.

Like black and green tea, rooibos is rich in polyphenols, such as rutin and quercetin. Cell and animal studies, mostly from South Africa, have shown that rooibos extracts have antioxidant, immune-stimulating, and anti-cancer properties. But studies of rooibos tea in people are limited. There’s little or no evidence to back claims that it relieves constipation, headaches, eczema, asthma, insomnia, high blood pressure, mild depression, ulcers, diabetes, and so on.
Unlike traditional green tea, matcha preparation involves covering the tea plants with shade cloths before they’re harvested. This triggers the growth of leaves with better flavor and texture, which are hand selected, steamed briefly to stop fermentation, then dried and aged in cold storage, which deepens the flavor. The dried leaves are then stone-ground into a fine powder.

Some of the antioxidants and healing compounds found in green tea include polyphenols, catechins and various other types of flavonoids — the same anti-aging compounds found in things like red wine, blueberries and dark chocolate. Despite that it does contain small amounts of caffeine, green tea consumption has been associated with more health benefits than even many of the healthiest foods available to us. Studies have found that the benefits of green tea are due to the fact green tea contains more healing compounds than many other herbs, spices, fruits and vegetables, truly making it a powerful “superfood.”
Green tea has slightly more antioxidants compared to black tea, although both are still great sources. The ORAC value (antioxidant content) of brewed black tea is 1,128 while green tea is slightly higher at 1,253. Black tea and green tea both contain antioxidants, including polyphenols. Some research shows that green tea contains more than four times the catechins that black tea does. Both types can contribute antioxidants to your diet and have been shown to have antiviral, anti-inflammatory, detoxifying and immune-stimulating effects.

On this episode of Consumed, host and Eater Drinks editor Kat Odell looks into the matcha production process — how it differs from that of more traditional steeped green tea, and how two of New York's noted matcha purveyors (Ippodo Tea Company and Matchabar) are working with the product today. Watch the video above for a lesson in powdered green tea; if your interest is piqued, check this map for the best places to drink matcha across the country, and these recipes for making iced matcha drinks at home, perfect for the summer.

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