Is green tea a superfood

Green tea, native to China and Japan, has been consumed and hailed for its health benefits for centuries globally, but has only recently gained popularity in the United States.
Tea is the most consumed beverage in the world behind water. However, 78 percent of the tea consumed worldwide is black and only about 20 percent is green.

All types of tea, except herbal tea, are brewed from the dried leaves of the Camellia sinensis bush. The level of oxidation of the leaves determines the type of tea.

Green tea is made from unoxidized leaves and is one of the less processed types of tea (with white tea the least) and therefore contains the most antioxidants and beneficipolyphe.


Fast facts on green tea
Here are some key points about green tea. More detail and supporting information is in the main article.
green tea has been used in traditional Indian and Chinese medicine
there are many different types of green tea available
green tea may help prevent a range of ailments including cancer
more research is needed to prove many of the health claims surrounding green tea
Green tea health benefits
green tea in a cup
Green tea is becoming increasingly popular in the U.S.
Listed below are the possible health benefits associated with green tea. Green tea was used in traditional Chinese and Indian medicine to control bleeding and heal wounds, aid digestion, improve heart and mental health, and regulate body temperature.

Recent studies have shown green tea can potentially have positive effects on everything from weight loss to liver disorders, type 2 diabetes, and Alzheimer's disease.

It is important to note that more evidence is required before these possible health benefit links are proved definitive:


1) Green tea and cancer prevention

According to the National Cancer Institute, the polyphenols in tea have been shown to decrease tumor growth in laboratory and animal studies and may protect against damage caused by ultraviolet UVB radiation.

In countries where green tea consumption is high, cancer rates tend to be lower, but it is impossible to know for sure whether it is the green tea that prevents cancer in these particular populations or other lifestyle factors.

Some studies have also shown the positive impacts of green tea on the following types of cancer:

breast
bladder
ovarian
colorectal (bowel)
esophageal (throat)
lung
prostate
skin
stomach
Researchers believe that it is the high level of polyphenols in tea that helps kill cancerous cells and stop them from growing. However, the exact mechanisms by which tea interacts with cancerous cells is unknown.

However, other studies have not found that tea can reduce cancer risk. The amount of tea required for cancer-preventive effects also varies widely in studies - from 2-10 cups per day.

In 2005, the Food and Drug Administration (FDA) stated, "there is no credible evidence to support qualified health claims for green tea consumption and a reduced risk of gastric, lung, colon/rectal, esophageal, pancreatic, ovarian, and combined cancers."


2) Green tea heart benefits

A 2006 study published in the Journal of the American Medical Association concluded that green tea consumption is associated with reduced mortality due to all causes, including cardiovascular disease.

The study followed over 40,000 Japanese participants between the ages of 40 and 79 for 11 years, starting in 1994.

The participants who drank at least 5 cups of green tea per day had a significantly lower risk of dying (especially from cardiovascular disease) than those who drank less than one cup of tea per day.

Green tea contains catechins, polyphenolic compounds that are thought to exert numerous protective effects, particularly on the cardiovascular system.
3) Green tea and lower cholesterol

An analysis of published studies in 2011 found that consuming green tea, either as a beverage or in capsule form, was linked to significant but modest reductions in total and LDL or "bad" cholesterol.

4) Stroke risk and green tea

Drinking green tea or coffee on a regular basis is associated with a reduced risk of stroke, according to a study published in the journal Stroke: Journal of the American Heart Association.

The lead author of the study, Dr. Yoshihiro Kokubo, Ph.D., said, "This is the first large-scale study to examine the combined effects of both green tea and coffee on stroke risks. You may make a small but positive lifestyle change to help lower the risk of stroke by adding daily green tea to your diet."

5) Green tea for type 2 diabetes

Studies concerning the relationship between green tea and diabetes have been inconsistent. Some have shown a lower risk of developing type 2 diabetes for green tea drinkers than for those who consumed no tea, while other studies have found no association between tea consumption and diabetes at all.


6) Green tea and weight loss

Green tea may promote a small, non-significant weight loss in overweight and obese adults; however, since weight loss in the studies was so minimal, it is unlikely that green tea is clinically important for weight loss.

7) Green tea and inflammatory skin diseases

A 2007 study concluded that green tea could hold promise as a new treatment for skin disorders such as psoriasis and dandruff. Researchers studied an animal model for inflammatory skin diseases, often characterized by patches of dry, red, flaky skin caused by the inflammation and overproduction of skin cells. Those treated with green tea showed slower growth of skin cells and the presence of a gene that regulates the cells' life cycles.

8) Working memory and the effects of green tea

Research published in the journal Psychopharmacology suggests that green tea can enhance our brain's cognitive functions, particularly the working memory.

The research team said their findings suggest that green tea could be promising in the treatment of cognitive impairments associated with neuropsychiatric disorders, such as dementia.

9) Green tea and Alzheimer's

In a study published in 2011, researchers tested the effect of a component of green tea, CAGTE (or "colon available" green tea extract), after it had been digested, to see how it affected a key protein in Alzheimer's disease.

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."

Other studies have found that green tea might be helpful in preventing dental cavities, stress, chronic fatigue, treating skin conditions, and improving arthritis by reducing inflammation.

Further research is needed to firm up these theories.


Nutritional breakdown of green tea
Unsweetened brewed green tea is a zero calorie beverage. The caffeine contained in a cup of tea can vary according to the length of infusing time and the amount of tea infused. In general, green tea contains a relatively small amount of caffeine (approximately 20-45 milligrams per 8 ounce cup), compared with black tea, which contains about 50 milligrams and coffee with 95 milligrams per cup.

Green tea is considered one of the world's healthiest drinks and contains one of the highest amounts of antioxidants of any tea. Natural chemicals called polyphenols in tea are what are thought to provide its anti-inflammatory and anti-carcinogenic effects. Green tea is approximately 20-45 percent polyphenols by weight, of which 60-80 percent are catechins such as EGCG. Catechins are antioxidants that are said to help prevent cell damage.

Types of green tea
Green tea leaves
Green tea is available bottled and sweetened with sugar or an artificial sweetener, in single tea bags, loose-leaf, and in instant-powder

Green tea supplements are unregulated by the FDA and may also contain other substances unsafe for health or with unproven health benefits. Always check with a doctor before starting any herb or supplement regimen.

In particular, pregnant or breastfeeding women, those with heart problems or high blood pressure, kidney or liver problems, stomach ulcers, or anxiety disorders should not take green tea supplements.

Green tea may boost our working memory
Green tea is hailed for numerous health benefits. Now, new research from the University Hospital of Basel in Switzerland finds the beverage could boost our working memory.


Could too much green tea be harmful to health?
Fruit flies exposed to large amounts of green tea showed impaired reproductive function and development in a new study, raising concerns about excessive consumption in humans.

Green tea compound shows promise for treating rheumatoid arthritis
EGCG - a compound abundant in green tea - was found to reduce ankle swelling in mouse models of rheumatoid arthritis, suggesting it could be a promising treatment for the disease.


Green Tea Protects You From Dying From Serious Disease
If you are a regular green tea drinker your chances of dying from cardiovascular disease is probably 25% less than most other people who are not regular drinkers, according to a new study.

This book provide therapeutic information on remedies from your own home,a very informative book to have and it is reasonably priced.

www.amazon.co.uk/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=Therapuetic+and+beauty+staples+at+home