Observational studies found a minor correlation between daily consumption of green tea and a 5% lower risk of death from cardiovascular disease. In a 2015 meta-analysis of such observational studies, an increase in one cup of green tea per day was correlated with slightly lower risk of death from cardiovascular causes. Green tea consumption may be correlated with a reduced risk of stroke. Meta-analyses of randomized controlled trials found that green tea consumption for 3–6 months may produce small reductions (about 2–3 mm Hg each) in systolic and diastolic blood pressures. A separate systematic review and meta-analysis of randomized controlled trials found that consumption of 5-6 cups of green tea per day was associated with a small reduction in systolic blood pressure (2 mmHg), but did not lead to a significant difference in diastolic blood pressure.
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^ 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.
Do you know what the term “cha” means, which is often found in the names of various qualities of green tea such as gyokurocha, sencha, bancha, matcha, and houjicha? It simply means “tea”, and tea is extremely popular all over India as “cha” (in Bengal & adjacent states) and “chai” in other areas. Just some fun facts for you to share with other tea lovers over your next cup of green tea!
Most importantly, EGCg and other catechins counteract the effects of free radicals from the likes of pollution, UV rays, radiation, and chemicals, which can lead to cell and DNA damage. Since over 60% of the catechins in matcha are actually EGCg, a daily matcha regimen can help restore and preserve the body’s integral well-being and balance. Read more on our Change The Odds Page.
Since some of the bioactive compounds in green tea are anti-viral and anti-bacterial, in much the same way as green tea can kill bacteria in your mouth, it can also inhibit bacteria and viruses in your bloodstream and throughout the rest of your body. Similarly, green tea may inhibit viral and bacterial infection via your nasal passages. All this means that green tea may help prevent colds and the flu, and furthermore seems to be able to alleviate the symptoms of colds and the flu once you are sick.
^ Jump up to: a b c "Scientific Opinion on the substantiation of health claims related to Camellia sinensis (L.) Kuntze (tea), including catechins in green tea, and improvement of endothelium-dependent vasodilation (ID 1106, 1310), maintenance of normal blood pressure (ID 1310, 2657), maintenance of normal blood glucose concentrations (ID 1108), maintenance of normal blood LDL cholesterol concentrations (ID 2640), protection of the skin from UV-induced (including photo-oxidative) damage (ID 1110, 1119), protection of DNA from oxidative damage (ID 1120, 1121), protection of lipids from oxidative damage (ID 1275), contribution to normal cognitive function (ID 1117, 2812), "cardiovascular system" (ID 2814), "invigoration of the body" (ID 1274, 3280), decreasing potentially pathogenic gastro-intestinal microorganisms (ID 1118), "immune health" (ID 1273) and "mouth" (ID 2813) pursuant to Article 13(1) of Regulation (EC) No 1924/2006". European Food Safety Authority. 8 April 2011. Retrieved 9 November 2014.
One of the key components in Matcha is the amino acid L-theanine, which is found almost exclusively in shade-grown green teas like Matcha. When L-theanine is combined with the natural caffeine in tea, it metabolizes more slowly, releasing the caffeine over a longer period of time and providing a stable three to six hour long energy boost (versus coffee caffeine at an hour to an hour and a half).
Liver problems have been reported in a small number of people who took concentrated green tea extracts. Although the evidence that the green tea products caused the liver problems is not conclusive, experts suggest that concentrated green tea extracts be taken with food and that people discontinue use and consult a health care provider if they have a liver disorder or develop symptoms of liver trouble, such as abdominal pain, dark urine, or jaundice.
Burdock Root - a member of the daisy family that originated in Eurasia - is now firmly established as a naturalized plant in North America. Herbalists value burdock for helping to detoxify the liver. The root is served as a food in Japan, where it is known as gobo. Resembling a long brown carrot, burdock can be prepared in the same way you might enjoy a carrot, such as fresh juice or in a stir-fry dish.
When I was conducting research into South Africa’s native herbs, I was served rooibos everywhere I went. Red in the cup, fragrant to the nose and pleasing to the palate, rooibos soon became a favorite. In every meeting, I looked forward to that red tea, which is one of the only native herbs of South Africa to achieve significant commercial status. My wife and I keep it in the tea cupboard at home, and we often turn to rooibos when we want a cup of tea without caffeine.
To make green tea, the leaves are quickly steamed or heated to stop oxidation, the chemical process that causes browning. To make black tea, the leaves are crushed, torn, curled, or rolled and allowed to oxidize before being dried. This additional processing step degrades some of the flavonoids. As a result, black tea has slightly lower amounts of flavonoids than green tea.
Choan, E., Roanne Segal, Derek Jonker, Shawn Malone, Neil Reaume, Libni Eapen, and Victor Gallant. “A prospective clinical trial of green tea for hormone refractory prostate cancer: an evaluation of the complementary/alternative therapy approach.” In Urologic Oncology: Seminars and Original Investigations, vol. 23, no. 2, pp. 108-113. Elsevier, 2005.
It’s important to note that I was not interested in, hoping for, or expecting any drastic changes to my appearance. I already lead a pretty healthy lifestyle: I drink 80 oz. of water a day, I work out at least 4-5 days a week, and I do my best to eat lean protein and lots of fruits and veggies. Like I said, I love food, but I’m usually good at keeping my cravings in moderation. I did not have a “goal weight,” and there were no numbers I was hoping to change (blood pressure, weight, heart rate, etc.). I cannot stress this enough: Acknowledge your own body, its needs, and its goals before you try any new regimen. A detox should fit into your life — you should not expect it to change your body overnight.
The polyphenols in green tea, which include multiple subcategories of polyphenols like flavonoids and catechins, can reduce the formation of free radicals in the body, protecting cells, molecules, and other structures from damage. One of the most active and powerful antioxidant polyphenols in green tea is epigallocatechin-3-gallate (EGCG). EGCG has been studied to treat a wide variety of diseases and may be one of the main reasons green tea has such powerful medicinal properties. Beyond EGCG, other polyphenol catechins in green tea include catechin, gallocatechin, epicatechin, epigallocatechin, and epicatechin gallate.
The leaves are used to make a herbal tea that is called by the names: rooibos, bush tea (especially in Southern Africa), or redbush tea (predominantly in Great Britain). The tea has been popular in Southern Africa for generations, but is now consumed in many countries worldwide. It is sometimes spelled rooibosch in accordance with the original Dutch. The tea has a taste and color somewhat similar to hibiscus tea, or an earthy flavor like yerba mate.
A juniper berry is not a true berry, but is a seed cone with unusually fleshy and merged scales that give it a berry-like appearance. Used as a spice in European cuisine, juniper berry has been used in traditional herbal medicine to support kidney and urinary tract function, as well as to help maintain healthy blood pressure levels that are already within the normal range. The essential oil can be stimulating to the kidneys. The warming and bitter properties support digestion and can soothe intestinal gas. Juniper berry can also be warming for the joints.
Shade grown: All matcha is made from shade-grown tea leaves—a labor-intensive process where tea bushes are protected from the sun and light is filtered to the bushes in a very controlled manor. Shading boosts the chlorophyll production in the plant, giving the leaves a rich green color. The lack of sun reduces the plant’s photosynthesis of the leaves, which in turn alters the naturally occurring levels of caffeine, flavanols, sugars, antioxidants, and theanine. By controlling the sun exposure, tea producers can significantly alter the chemical make-up and flavor of the final tea leaves.
The Alzheimer's Society commented that "this study adds to previous research that suggests green tea might help to reduce the risk of Alzheimer's disease. However, the researchers used a far higher dose of the active green tea chemical than would ever be found in the human body. More research is needed to see whether green tea is protective at a much lower dose, and to understand the mechanism involved."
Slimming tea: Does it work and is it bad for you? Slimming teas have become increasingly popular in recent years. They aim to suppress the appetite, reduce fat, or boost the metabolism. However, while weight loss may result, this is largely due to fluid loss. The use of these teas remains controversial, and people are encouraged to use other methods of weight loss. Read now
One-1/2 teaspoon serving of matcha, no more than once daily, is certainly a valuable addition to any diet, says Zeitlin. Like with another substance currently having a moment, turmeric, you can get your dose by eating or drinking it, though Zeitlin says drinking it as a tea, how it was initially intended, provides all the benefits without the added calories.