GREEN TEA AND ITS BENEFITS –
Mrs. Rajiny.Ch1. M.Sc., B.Ed., PGDN&D., (Ph.D)
Department of Home Science
Avvaiyar Govt. College for Women.,
• Old Age and the aging
procedure are a biological
phenomenon which has its
own dynamism, largely
beyond ones command.
• Old age brings a whole new
gamut of changes in an
• These changes range from
simple changes such as a mild
memory loss or forgetfulness
to more serious changes such
as changes in the functioning
of the brain and nervous
CHANGES DURING OLD AGE
• Heart's blood vessels tend to
accumulate calcium and plaque, the
cholesterol-containing material that
narrows vessels and causes a heart
attack. This process may lead to
abnormally leaky or narrowed valves.
• The kidneys' ability to filter the blood
diminishes with time
• Joint flexibility and range of motion
tend to diminish because of age-
related injury ("wear-and-tear") and
• The brain often atrophies (shrinks).
This effect is particularly prominent in
the cortex, the part of the brain
handling language, speech, memory
and other complex functions.
• Green tea is made solely from the leaves
of Camellia sinensis that have undergone
minimal oxidation during processing.
• Green tea originates in China.
• Green tea contains chemicals known as
antioxidants, particularly the compound
known as EGCG Epigallocatechin gallate that
may help prevent cell damage in the body.
• Green tea contains antioxidants
Effects of Green Tea Components
Catechins(Astringency component in tea)
• Decreases blood cholesterol
Body fat reduction
Cancer prevention effect
Tooth decay prevention, antibacterial
Inhibits high blood pressure
Bad breath prevention (deodorizing
Caffeine(Bitterness component in tea)
• Increases alertness
(decreases tiredness and drowsiness)
RESEARCH- I Phase
• Type of study: A experimental study
• Selection of Area: Research was conducted in
Puducherry (Lawspet, Govindasalai, MG road,
• Objectives: To analyse the effect of green tea on
selected disorders of selected samples.
• Selection of Samples: Obese (25),
hypercholesteremic (15) patients and diabetic
(20) old aged were selected.
Green tea (8gm) was supplemented to the
samples for 40 days and changes were recorded.
• Qualitative and Quantitative tests on green tea
were also conducted
OLD AGE AND OBESITY
• Many older people in developing countries are
overweight or obese.
• The prevalence is increasing as more people
reach old age already overweight.
• Obesity in old age is associated with increased
morbidity and a reduction in quality of life.
• The relative increase in mortality is less in older
than young adults and the body weight
associated with maximal survival increases with
• Caution should be exercised in recommending
weight loss to overweight older people on the
basis of body weight alone.
OLD AGE AND OBESITY
Weight was recorded prior and after the
administration of green tea . It was found that
• Around 70 percent of the samples had
reduced their weight to 2 kilograms.
• The samples suffered from disability to move,
frequent joint pains due to their increase in
• Drinking Green tea the samples acclaimed
that they felt light and active.
OLD AGE AND CVD
• The risk of heart disease increases about 3-fold
with each advancing decade.
• Older age is considered a risk factor for heart
disease after age 55 for women and after age 45
• This is partly because many women younger than
55 have not yet gone through menopause and
still have high levels of the female hormone
estrogen in their blood.
• High blood pressure also increases the risk of
OLD AGE AND CVD
• The samples cholesterol levels were tested and it
was seen that there was substantial decrease in
cholesterol levels among 85 percentage of the
• Studies reveals that the caffeine and polyphenols
in green tea increase thermogenesis, the rate at
which calories are burned, and therefore raises
metabolism. Raising metabolism causes the body
to burn more calories, which in turn can lead to
• Statistical inferences were drawn and was proved
that green tea remarkably reduced weight ,
cholesterol and Blood Pressure
Diabetes and Old age
• Fasting sugar, post-meal or post prandial, for the
selected 20 samples was done.
• It was found that the eleven (55%) patients fell in
the category of early diabetes(101-126mg/dl)
and nine (45%) had established diabetes (more
than 126 mg/dl).
• After the consumption of tea it was found that
nearly 64 percentage had decreased their sugar
levels from early diabetes to normal levels (70-
100mg/dl), and 20 percentage had their levels
reduced from established to early diabetes levels.
II Phase of the Study
• Qualitative and Quantitative tests were conducted on
green tea and Ordinary Tea to analyse the presence of
antioxidants and polyphenols in green tea.
• Qualitative Test showed that antioxidants were present
in tea and green tea.
• Qualitative Test showed that antioxidants like alkaloids,
catechins, flavonoids, phenols, sugars and tannins were
present in green tea, Quantitative results showed that
alkaloids - 26.7±1.3, flavonoids – 29.6±4.7, polyphenols
– 37.4±3.2 were present. But Quantitative results
showed that green tea has more levels of antioxidants
which helped in the cure of various metabolic disorders
in the Body.
• Pamphlets were also distributed to samples to create
awareness on green tea, its method of preparation and
• Two cups of tea also have the equivalent
antioxidant activity of one and a half glasses
of red wine, 12 glasses of white wine and
seven glasses of orange juice.
• Overweight, hypertension, CVD , diabetes and
obesity are recognized as major risk factors
leading to unhealthy life and quick death.
• Green tea helps you manage these so drink
two cups every day.