| Compiled by Teacuppa.com
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.
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Tea replaces fluids and
contains antioxidants so its got two things going for it
Lead author Dr Ruxton |
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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Tea is not dehydrating. It is
a healthy drink
Claire Williamson of the British
Nutrition Foundation |
Dr Ruxton's team found average tea consumption was just under three
cups per day.
She said the increasing popularity of soft drinks meant many
people were not drinking as much tea as before.
"Tea drinking is most common in older people, the 40 plus age
range. In older people, tea sometimes made up about 70% of fluid
intake so it is a really important contributor," she said.
Claire Williamson of the British Nutrition Foundation said:
"Studies in the laboratory have shown potential health benefits.
"The evidence in humans is not as strong and more studies need to
be done. But there are definite potential health benefits from the
polyphenols in terms of reducing the risk of diseases such as heart
disease and cancers.
"In terms of fluid intake, we recommend 1.5-2 litres per day and
that can include tea. Tea is not dehydrating. It is a healthy
drink."
The Tea Council provided funding for the work. Dr Ruxton stressed
that the work was independent.
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