Bottled tea beverages contain little or no antioxidants

Posted by Neill Abayon

Countless studies over the years about the health benefits of tea -- particularly green tea -- have driven many health-conscious consumers to stock up on all the latest tea beverages that claim to improve health. But a recent study has shown that most commercial bottled tea drinks contain virtually no antioxidants and a whole lot of sugar or artificial sweeteners.

"Consumers understand very well the concept of the health benefits from drinking tea or consuming other tea products," explained Shiming Li, Ph.D., an analytical and natural product chemist, concerning the study. "However, there is a huge gap between the perception that tea consumption is healthy and the actual amount of the healthful nutrients -- polyphenols -- found in bottled tea beverages. Our analysis of tea beverages found that the polyphenol content is extremely low."

Polyphenols are the unique antioxidants commonly found in freshly-brewed tea that exhibit anti-inflammatory, anti-cancer and anti-diabetic effects on the body. But after analyzing six different brands of bottled tea beverages, Li and his colleagues discovered that three contained "virtually no" polyphenols, and the others had so little that they provided little benefit.

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Green tea 'slows prostate cancer'

Posted by Neill Abayon

A chemical found in green tea appears to slow the progression of prostate cancer, a study has suggested.

Green tea has been linked to a positive effect on a wide range of conditions, including heart disease, cancer and Alzheimer's disease.

The research, in the US journal Cancer Prevention Research, found a significant fall in certain markers which indicate cancer development.

A UK charity said the tea might help men manage low-risk tumours.

Although previous studies have shown benefits from drinking green tea - including some positive findings in relation to prostate cancer, there have been mixed results.

In this study, Philadelphia-based researchers tested a compound called Polyphenon E.

They were looking for a number of biomarkers - molecules - including vascular endothelial growth factor (VEGF) and hepatocyte growth factor (HGF) which are indicators of developing cancer.

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Three Cups of Tea a Day Slashes Your Breast Cancer Risk

Posted by Neill Abayon

Just three cups of tea a day could slash the risk of breast cancer in young women, according to new research.

The chances of developing a tumour dropped by around 37 per cent in women under 50 who drank tea at least three times daily.

But older women who consumed similar amounts did not see any benefit, the study found.

Researchers think the anti-cancer properties of tea may have a more potent effect on the types of tumours that tend to grow in younger women.

Around 40,000 women a year in Britain are diagnosed with breast cancer. The disease affects one in nine women at some point in their lives.

Risk factors range from being overweight and having a family history of the disease to smoking and going through the menopause.

Although the health benefits of tea are well known, most of the evidence centres on heart disease.

A study last year showed four cups a day could reduce the risk of a heart attack.

But other recent studies suggest tea can protect against skin cancer, ovarian cancer and even weak bones.

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Is Tea Healthier Than Water?

Posted by Neill Abayon

Drinking three or more cups of tea a day is as good for you as drinking plenty of water and may even have extra health benefits, say researchers.

The work in the European Journal of Clinical Nutrition dispels the common belief that tea dehydrates.

Tea not only rehydrates as well as water does, but it can also protect against heart disease and some cancers, UK nutritionists found.

Experts believe flavonoids are the key ingredient in tea that promote health.

Healthy cuppa

These polyphenol antioxidants are found in many foods and plants, including tea leaves, and have been shown to help prevent cell damage.

Public health nutritionist Dr Carrie Ruxton, and colleagues at Kings College London, looked at published studies on the health effects of tea consumption.

They found clear evidence that drinking three to four cups of tea a day can cut the chances of having a heart attack.

Some studies suggested tea consumption protected against cancer, although this effect was less clear-cut.

Other health benefits seen included protection against tooth plaque and potentially tooth decay, plus bone strengthening.

Dr Ruxton said: "Drinking tea is actually better for you than drinking water. Water is essentially replacing fluid. Tea replaces fluids and contains antioxidants so it's got two things going for it."

Rehydrating

She said it was an urban myth that tea is dehydrating.

"Studies on caffeine have found very high doses dehydrate and everyone assumes that caffeine-containing beverages dehydrate. But even if you had a really, really strong cup of tea or coffee, which is quite hard to make, you would still have a net gain of fluid.

"Also, a cup of tea contains fluoride, which is good for the teeth," she added.

There was no evidence that tea consumption was harmful to health. However, research suggests that tea can impair the body's ability to absorb iron from food, meaning people at risk of anaemia should avoid drinking tea around mealtimes.

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Green Tea: An Effective Natural Skin Care Remedy

Written by Neill Abayon

A recent Science Daily article noted that tea extract can heal skin that has been damaged by radiation. The study was done on cancer patients who underwent radiation therapy that caused skin damage. It showed that the tea extract worked on the cellular level of the skin to reduce inflammation and toxicity. Both black and green tea extracts worked well, although green tea proved more effective, at least in some patients.

This is good news for tea lovers who are concerned about the health of their skin. And even if you are not much of a tea drinker, you can purchase skin care products that contain tea extract to take advantage of its natural properties. There are also a number of health drinks that contain green tea extract as an ingredient, and you could include them in your diet if you prefer.

Of course, the Green Tea Skin Care properties have been known for some time by natural health enthusiasts, but it was not until relatively recently that the scientific establishment has documented findings that agreed with the advice doled out by traditionalists.

Another special property of black and green tea is that they contain natural compound known as catechins, which are natural antioxidants. Catechins are highly present in the Camellia sinensis plant, which is the source of various tea products, including green tea and black tea.

Antioxidants are effective chemical compounds that counter the effects of free radicals on skin. Free radicals, which are highly reactive oxygen molecules, cause damage to the skin proteins that keep your skin smooth and elastic. When these proteins are damaged, your skin becomes prone to wrinkles. Antioxidants are able to absorb and heal the effects of free radicals on skin, and thus slow down some of the visible signs of aging.

The catechins found in green tea and black tea are only one type of naturally occurring antioxidants. Caretenoids, coumarins, and indoles also belong in the antioxidants group and in fact they are all more common than catechins. All of these natural chemical compounds are found mainly in plants. That means that a diet rich in fruits and vegetables would provide your body with a healthy supply of antioxidants that can help you keep younger-looking skin for much longer. Supplementing such a diet with green tea intake can prove even more effective.

Green tea has also been shown to be an effective cancer preventative. Therefore by consuming it you are not only keeping your skin young and fresh, but possibly prolonging your lifetime as well.