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The key
ingredients of PhytoSoy are Phytoestrogens, Omega 3 Fatty Acids, Lignans,
Dietary Fibre, Calcium and Vitamin D3.
Phytoestrogens are plant compounds that mimic human oestrogen and are
found in most plants to varying degrees. The phytoestrogens in PhytoSoy
are Lignans in which Linseed is 75 - 800 times richer than any known
other plant source and Isoflavins of which Soy contains very high
levels.
Medical studies have suggested that people consuming high levels of
phytoestrogens are at less risk of breast and colon cancers as well as
coronary heart disease. Lignans, also present in Linseed are reported to
modulate oestrogen as an adjunct to medication. Alpha-linolenic acid
(omega 3) is also reported to reduce the incidence of cancer and
coronary heart disease.
Fibre has a protective effect in prevention of certain cancers and
assists in the control and prevention of diabetes and heart disease, and
extra wheat bran has been included on the basis of research performed by
Dr Joanne L Slavin “Effects of Wheat Bran on Metabolism of
Chemopreventative Agents in Humans”.
Calcium is added to help combat the effects of osteoporosis, and
Vitamin D3 is added to assist absorption of calcium.
PhytoSoy not only provides benefits to post
menopausal women, but also to the entire family.
Isoflavones,
lignans linked to reduced risk of endometrial cancer
[top]
8/6/2003
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Women who include the natural
oestrogens isoflavones and lignans in their diet could be at reduced
risk of endometrial cancer, the fifth most common cancer among women
worldwide, report researchers.
The development of endometrial cancer is related to prolonged exposure
to oestrogens without cyclic exposure to progesterone. Phytoestrogens,
or oestrogens derived from plant foods such as soy, can remedy this
balance and appear to reduce the risk of the cancer which causes between
4000 - 5000 deaths in the US each year, shows the study in today’s issue
of the Journal of the National Cancer Institute.
Dr
Pamela L. Horn-Ross and colleagues from the Northern California Cancer
Center in Union City, US, evaluated the associations between dietary
intake of seven specific compounds representing three classes of
phytoestrogens (isoflavones, coumestans, and lignans) and the risk of
endometrial cancer in a case-control study of women aged 35 to 79 in the
San Francisco area.
Consumption of isoflavones and lignans, but not coumestans, was
associated with a reduced risk of endometrial cancer, particularly among
postmenopausal women. Obese postmenopausal women consuming relatively
low amounts of phytoestrogens had the highest risk of endometrial
cancer; however, the interaction between obesity and phytoestrogen
intake was not statistically significant, reported the team.
“Some
phytoestrogenic compounds, at the levels consumed in the typical
American-style diet, are associated with reduced risk of endometrial
cancer,”
they write. Soy-rich diets have previously been shown to reduce the risk
of breast cancer in women.
Phytoestrogens are found in
soy-based foods, but also in foods with added soy (such as white bread),
and in lower amounts in coffee and orange juice.
Lignans
linked to better cognitive function
[top]
5/30/2005
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Consumption of lignans
could help preserve cognitive function in postmenopausal women and
decrease their risk of developing Alzheimer’s disease, according to
researchers at the Julius Center for Health Sciences and Primary Care in
Utrecht, The Netherlands.
Several studies over the past five years have presented evidence that
cognitive decline can be a precursor to Alzheimer’s, in which diet is
thought to be a contributing factor.
When women
experience the menopause, their natural estrogen levels decline
gradually over two to ten years. The presence of estrogen receptors in
the central nervous system indicates its role in cognitive function, but
the side effects of estrogen replacement therapy (ERT) may include
increased risk of breast cancer and cardiovascular disease, and vaginal
bleeding.
Given these
drawbacks, interest has been piqued in the effects of phytoestrogens
obtained from the diet, which may provide the same benefits as ERT,
without the risks.
But according
to the Dutch researchers, whose study is published in the Journal of
Nutrition (135, 5:1190-1195, 2005), data on the relationship between
phytoestrogens and cognitive function are still sparse.
They set out to
examine how dietary intake of two phytoestrogens, lignans and
isoflavones, in the typical Western diet may affect cognitive function
in postmenopausal women.
The main
dietary sources of lignans are oil-seeds, linseeds, broccoli and
berries. Isoflavones occur in soy products, beans, peas, nuts, tea and
coffee.
The study
involved 394 healthy postmenopausal women who had an intact uterus, at
least one intact ovary and had not used hormonal replacement therapy
since their last menstrual period. Of these women, 196 experienced a
natural menopause between 1969 and 1979 and 207 between 1987 and 1989.
Their intake of
phytoestrogens during the year prior to enrollment in the study was
estimated by a validated food frequency questionnaire. Cognitive
function was assessed by a mini-mental state examination (MMSE), which
involved questions and tasks associated with orientation, registration,
attention, calculation, recall and language.
Since diagnosis
of dementia was not the aim, the cut-off score for intact cognitive
function was relatively high –
26 or more out of a possible 30. After adjustment for confounders, women
who consumed higher levels of lignans performed better in the MMSE, and
the results were more pronounced amongst the women who experienced
menopause between 1969 and 1979.
Establishing a
reason for this difference was outside the scope of this study but
possible explanations were put forward by the researchers, such as some
other age-related mechanism. The 1969 to 1979 group had a mean age of
69.2 years, compared with 63.5 years for the 1987 to 1989 group.
"An
alternative explanation is that the protective effect of endogenous
estrogens on the nervous system us dependent on cumulative time of
exposure rather than on actual levels of intake,"
they wrote.
However the
researchers could establish no relationship between isoflavone intake
and cognitive function –
an apparent contradiction to the findings of a study published in
Psycopharmacology in 2001, which concluded that isoflavones from soy
may indeed positively effect cognition.
Other research
underway in The Netherlands is investigating lignans’
potential to alleviate the effects of age-related conditions in men.
Earlier this month
Acatris released the results of an animal study suggesting that flax
lignans may help treat benign prostate hyperplasia, a condition said to
affect more than half of all men over the age of 50. A human clinical
study to test the theory further is expected to take place later this
year, and will also look at the effect of lignans on hair loss.
Link:
http://www.nutraingredients-usa.com/news/ng.asp?n=60631&m=1NIU614&c=xhmtffoabuqnnyt
High calcium
and vitamin D diet may decrease risk of PMS
[top]
6/14/2005
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A diet rich in calcium
and vitamin D may lower the risk of developing premenstrual syndrome
(PMS), a condition that affects up to a fifth of all women, researchers
reported yesterday.
Previous studies have suggested that calcium supplements and vitamin D,
a hormone that regulates the absorption of calcium, may reduce
premenstrual occurrence and severity but it was not clear whether the
mineral-vitamin combination could prevent the condition from developing
in the first place.
While most
women experience mild emotional or physical premenstrual symptoms, as
many as 8-20 per cent of women experience symptoms severe enough to meet
the definition of premenstrual syndrome, which can substantially
interfere with daily activities and relationships.
The new trial,
carried out by Elizabeth R. Bertone-Johnson of the University of
Massachusetts and a co-author from study funder GlaxoSmithKline,
suggests that changing the diet could be beneficial for those in this
category.
The researchers
compared the diets and supplement use of 1,057 women aged 27 to 44 years
old who reported developing PMS over the course of 10 years to 1,968
women who reported no diagnosis of PMS or no or minimal premenstrual
symptoms in the same time period.
The women, who
participated in the Nurses Health Study, all reported no PMS in 1991, at
the beginning of the study period.
Their intake of
calcium and vitamin D from diet and/or supplements was calculated from
food frequency and standard NHS questionnaires administered in 1991,
1995 and 1999.
"We observed
a significantly lower risk of developing PMS in women with high intakes
of vitamin D and calcium from food sources, equivalent to about four
servings per day of skim or low-fat milk, fortified orange juice or
low-fat dairy foods such as yoghurt,"
the authors write in the 13 June issue of the Archives of Internal
Medicine (165, pp1246-1252).
Women in the
highest quintile of total vitamin D intake
– those taking on average 706
IU each day - had a relative risk of 0.59 compared with those consuming
only 112 IU per day.
Women consuming
the most calcium (on average 1283mg per day) had a 30 per cent lower
risk of developing PMS than those with a low intake of 529mg daily.
“While
previous studies have observed the benefits of calcium supplements for
treating PMS, this is the first, to our knowledge, to suggest that
calcium and vitamin D may help prevent the initial development of PMS."
The intake of
skim or low-fat milk was also associated with a significantly lower
risk.
"Our
findings, together with those from several small randomized trials that
found calcium supplements to be effective in treating PMS, suggest that
a high intake of calcium and vitamin D may reduce the risk of PMS,"
the authors conclude.
They added that
clinical trials are needed before the mineral/vitamin combination can be
recommended for this condition. However, given that calcium and vitamin
D may also reduce risk of osteoporosis and some cancers, clinicians may
consider recommending these nutrients even for younger women, they said.
Low-fat diet
could slow breast cancer, new study
[top]
7/15/2005
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Researchers at UCLA
have reported that daily exercise and replacing the typical high-fat
American diet with low-fat, high-fiber foods may slow the growth of
breast cancer cells in postmenopausal women by as much as 19 percent,
writes Jess Halliday.
The latest study, presented this week at the International Research
Conference on Food, Nutrition and Cancer in Washington, DC, builds on
previous evidence that breast cancer risk can be reduced by diet.
Earlier this
year UCLA made public the findings of an epidemiological study involving
more than 2,400 women with early-stage breast cancer. They were seen to
have significantly less chance of their cancer return within five years
if they ate a low-fat diet with plenty of fruit and vegetables, compared
with eating typical American diet high in fat.
However lead
investigator Dr James Barnard, professor of physiological science at
UCLA, said that his study is a departure in one key respect:
"This is the
first study to my knowledge to show that lifestyle changes can induce
apoptosis, or cell death, in breast cancer cells."
Twenty-six
postmenopausal women attended a 13-day program at the Pritkin Longevity
Center and Spa, during which they adhered to an exercise regime and
consumed a low-fat, high-fiber diet rich in fruits, vegetables and whole
grains.
The researchers
took blood samples at the start and end of the trial, and placed these
samples in three different sets of culture dishes, each with a different
line of breast cancer cells.
In all three
they noted a 20 to 30 percent increase in apoptosis (tumor cell death)
when they compared the samples from the start of the trial to those at
the end.
They also
measured changes in serum estradiol (a form of estrogen), insulin and
insulin-like growth factor (IGF-1) –
all of which are independent risk factors for breast cancer development.
In women taking hormone replacement therapy estradiol levels fell by an
average of 34 percent, and in those not taking it by 27 percent. Insulin
levels fell by 29 percent and IGF-1 levels by 19 percent in all the
women.
Overall Barnard
concluded that the combined effect of the two processes resulted in
serum changes that slowed the growth of breast cancer cells by as much
as 19 percent.
Dr William
McCarthy of UCLA's School of Public Health said:
"This is exciting research because it shows that women
can make changes in a very short period of time that can have a dramatic
impact on their health - in this case, on the growth and death of breast
cancer cells.”
The US has one
of the highest incidences of breast cancer in the world, where it
accounted for 41,250 deaths in 2002. The American Cancer Society
estimates that in 2005 approximately 211,240 women will be diagnosed
with the disease.
In Asian
countries such as Japan, where the typical diet contains much less fat
and more fresh, high-fiber foods, breast cancer rates are much lower.
But Barnard
warned that they may not maintain their advantage for long:
"As Asian
countries like Japan are now becoming more Westernized, their breast
cancer rates are going up substantially,"
he said.
Not all
research into the link between breast cancer and diet has yielded
positive results, however. A large, European-wide study published in
JAMA this January concluded that fruit and vegetables do not in fact
reduce the risk, despite previous evidence to the contrary.
Nonetheless, the authors wrote:
“This does not
exclude the possibility that protective effects may be observed for
specific nutrients or in specific subgroups of women, such as those with
a family history of breast cancer or oestrogen-receptor positive
tumours.”
SOY & BLOOD PRESSURE
[top]
Source:
American Journal of Clinical Nutrition (81(5):1012-1017.2005)
Eating just 25g
of soy protein a day may reduce blood pressure in women, according to
research being undertaken in the US and China.
The trial has
been set up to assess the effect of protein rich soy foods have over a
two to three year period. The research has found that soy intake can
reduce both systolic and diastolic blood pressure, particularly in older
women.
The research
teams measured the usual intake of soy foods of 45,694 participants of
the Shanghai Women’s Health Study. Women in the trial were aged 40-70
years old and had no history of hypertension, diabetes, or
cardiovascular disease when they commenced the study. Blood pressure
levels were then measured two to three years after the first collection
of data.
The new data
showed that soy protein intake was inversely associated with blood
pressure, after taking into account body mass index, diet and lifestyle
factors.
The study
revealed that for women who ate a minimum of 25g of soy protein each
day, the adjusted mean systolic blood pressure was 1.9mm Hg lower and
the diastolic BP was 0.9mm Hg lower than in women who ate less than 2.5g
of soy protein each day.
Research also
revealed that the inverse associations increased with age. In the group
of women over 60 years old, the corresponding differences were – 4.9mm
Hg for systolic BP and 2.2mm Hg for diastolic BP.
The researchers
believe that the isoflavones in soy may increase levels of nitric oxide
in the blood, therefore relaxing blood vessels and lowering blood
pressure.
http://www.nutraingredients-usa.com/news/news-ng.asp?n=25548-isoflavones-lignans-linked
SOY: MAY REDUCE PROSTATE CANCER
[top]
Source:
International Journal of Cancer (Online
publication)
Regular
consumption of foods and beverages containing soy protein may reduce the
risk of prostate cancer in men by as much as 30 per
cent, according to a study recently published in the e-publication of
the International Journal of Cancer.
Conducted by Lin
Yan, PhD, Director of Cancer Research for The Solae Company and Edward
Spitznagel, PhD, Professor of Mathematics at Washington University, the
study is a meta-analysis of eight population studies that examined
consumption of soy protein-containing foods in relation to prostate
cancer in men.
The five studies
were completed in the US, Canada and Asia. The meta-analysis of these
studies demonstrated a dramatic 30 per
cent reduction in the risk of prostate cancer in men who regularly
consumed foods containing soy-protein.
The finding of
this study is also consistent with and supported by a cross-national
analysis of prostate mortality rate in relation to nutritional factors
using data from United Nations sources. In the 42 countries where the
appropriate data is available, soy consumption is correlated to a
significantly lower mortality rate from prostate cancer.
The protection
from soy is demonstrated to be at least four times greater than from any
other dietary factors that were analysed.
FLAX LIGNANS: CURE FOR HAIR LOSS
[top]
Source:
www.acatris.com
A pilot study
carried out by Dutch company Acatris, suggests that taking flax lignans
could put an end to baldness.
Jocelyn Mathern,
Technical Specialist at Acatris, said that androgenetic alopecia (AGA),
the most common from of hair loss, is a hormonal as well as a genetic
issue effecting around 50 per
cent of men aged 50 years old or older.
“A potent form of
the male hormone testosterone, dihydrotestosterone (DHT), can get inside
hair follicles and cause them to shrink and produce thinner hair and
eventually none at all,” said Mathern.
The main flax
lignan, secoisolariciresinol diglucoside (SDG), can help prevent this by
inhibiting production of the enzyme that converts testosterone into DHT,
called 5-alpha reductase.
The study took
place at a health company in Taiwan over a six-month period. Ten male
sufferers of androgenetic alopecia aged between 20 and 70 years received
a 50mg daily dose of SDG.
The condition of
their hair was documented at the beginning of the study by photographs
and the men measured their hair loss throughout the period by counting
the number of hairs on their pillows each morning.
Initial effects
of the flax lignans were noticed on average one to two months into the
study. At the end of the period, eight of the participants reported a
modest improvement in their hair loss condition, one reported a great
improvement and one reported no effect at all. The more severe the
participant’s hair loss was at the start of the trial, the more
noticeable the improvement. Half the subjects also noted decreased oil
secretion in their scalp. No adverse effects were reported.
“This pilot study
confirms earlier research on flax lignans with respect to their promise
in the care of AGA and without the sometimes harmful effects of a
prescription medication,” said Mathern.
Result’s from the
pilot study indicate that Acatris will be sponsoring a clinical trial at
a research centre in Maastricht, The Netherlands, later this year.
SOY MILK: EUROPE'S FASTEST GROWING 'DAIRY'
[top]
Source: Food
Production Daily
Over the last six
years soy milk has become Europe’s fastest growing ‘dairy’ sector.
Health ‘trends’ such as soy milk, and increased reports of lactose
intolerance,
are presenting new challenges to dairy organisations.
A new report on
the global dairy market from research group Euromonitor says that the
value of the soy milk market has more than doubled to ˆ375 million
between 1998 and 2004, due to consumer obsessions with health and
wellness.
The report says
soy milk has benefited from
rising consumer awareness that soy is high in fibre, protein and
minerals yet low in saturated fat and free from cholesterol. Isoflavins
found in soy milk have also been promoted as reducing the risk of many
diseases, including breast and prostate cancer, colon disorders,
osteoporosis and heart problems.
A growing number
of consumers are also turning to soy milk because they are worried about
lactose intolerance: where the body doesn’t produce enough lactase
enzyme to breakdown the lactose in dairy products. Lactose intolerance
symptoms may include bloating, abdominal pains and diarrhoea.
The UK Dairy
Council said recently that around 45 per
cent of British people (27 million) claimed to be lactose intolerant,
yet only two per
cent had been clinically diagnosed. The official intolerance figure for
Northern Europe and North America is around five percent.
LIGNANS: BENEFITS FOR
BRAIN FUNCTION
[top]
Source:
Journal of Nutrition (135(5):1190-1195.2005)
Consuming lignans
could encourage preservation of cognitive function and reduce the risk
of Alzheimer’s Disease, according to research being conducted in the
Netherlands.
A number of
studies over the years have found a link showing diet to be a
contributing factor in cognitive decline that may lead to Alzheimer’s
Disease.
This research
aims to observe how the intake of two phytoestrogens, lignans and
isoflavones, in the diet can affect cognitive function in postmenopausal
women.
The main sources
of lignans in a western diet are from oil-seeds, such as linseed,
broccoli and berries. Isoflavones are found in beans, nuts, legumes,
soy foods and also in tea and coffee.
The study
involved 394 healthy postmenopausal women who had an intact uterus, at
least one intact ovary and had not used hormonal replacement therapy
since their last menstrual period. Of these women, 196 experienced a
natural menopause between 1969 and 1979 and 207 between 1987 and 1989.
Their consumption
of phytoestrogens during the year prior to enrollment in the study was
estimated by a validated food frequency questionnaire. Cognitive
function was assessed by a mini-mental state examination (MMSE), which
involved questions and tasks associated with orientation, registration,
attention, calculation, recall and language.
As the diagnosis
of dementia was not the aim of the study, the cut-off score for intact
cognitive function was relatively high – 26 or more out of a possible
30. After adjustment for confounders, women who consumed higher levels
of lignans performed better in the MMSE, and the results were more
pronounced amongst the women who experienced menopause between 1969 and
1979.
The scope of this
study did not extend to establishing a reason for this finding but
suggested that it may be linked to some other age-related mechanism.
"An alternative
explanation is that the protective effect of endogenous estrogens on the
nervous system is dependent on cumulative time of exposure rather than
on actual levels of intake," the researchers said.
FLAXSEED: A MUFFIN A DAY...
[top]
Source:
Clinical Cancer Research
(2005) May:15;11(10):3828-35
One
flaxseed
muffin a day for 30 days
could destroy up to 31% of breast cancer cells in newly diagnosed
women, according to recent research.
The role of
flax lignans as a treatment for cancer has been studied in cell
cultures and animals for many years, but they had not been tested
people diagnosed with cancer.
Canadian
researchers enrolled women who had been newly diagnosed with breast
cancer as volunteers to study the effects of flaxseed on breast
cancer progression. One flaxseed muffin a day, containing a
predetermined concentration of pre-lignans, was consumed each day
for 30 days. The results showed that flaxseed pre-lignans,
converted in the intestines by bacteria into anti-cancer lignans,
were effective in destroying the breast cancer cells.
The growth
index in the cancer cells was reduced 34.2 per cent, while the level
of programmed cell death increased to 30.7 per cent.
According to
Dr Stephen Martin, Chief Scientist of Grouppe Kurosawa, said that
data like this had never been reported before.
"This study
is critically important not only for breast cancer patients, but for
all cancer patients because lignans kill many kinds of cancers,
including the presently incurable melanoma. With the exception of
palmitic acid, the common saturated fatty acid, specific foods do
not normally have the ability to kill cancer cells. We are only
talking a muffin a day. What if we ate two?" said Dr Martin.
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