Re: More Info from the ZRT Conference

[Guest guest]

there might be a reason that dairy may not be good for you or your hormones.

read

below. Cows are kept pregnant and thus today we have high levels of progesterone

in our

dairy products.

There was a study recently conducted on dairy and men testing levels of

progesterone,

can't find it now but it was pretty mind blowing. I eliminated dairy after

reading it.

Karin

Gravid Bovines

Modern Milk

the milk we drink today may not be nature's perfect food, " says Ganmaa

Davaasambuu, a

Mongolian physician who is a fellow this year at the Radcliffe Institute for

Advanced Study.

Even as the scientific community has become interested in the effects of the

bioactive

substances found in pesticides, says Ganmaa, not much attention has been paid to

the

naturally occurring estrogens found in food, which are both far more abundant

and more

biologically available than environmental estrogens. In fact, she is concerned

that the high

levels of hormones found in commercially produced milk may be harmful to human

health.

Estrogens and other growth factors have been implicated in the development of

hormone-

dependent cancers: those affecting the prostate, testes, ovaries, breasts, and

uterus.

Skeptics note that humans have been drinking milk without apparent harm for

millennia,

she says. But modern milk is different. Her concern stems not from the use of

bovine

growth hormone (she excluded BGH-fed cows from her studies), but from the fact

that

milk-producing cows in commercial dairies, through use of artificial

insemination and

high-quality winter feed, are kept pregnant and lactating 300 days a year. " Cows

are like

humans, " she explains. " When they get pregnant, the estrogen levels in their

blood, milk,

and urine increase. [Human pregnancy tests detect similar increases.] This made

me

wonder—since the cows are pregnant all the time, the hormone levels in their

milk should

be really high. "

While earning her doctorate in environmental health in Japan, Ganmaa began

investigating

the prevalence and effects of these naturally occurring hormones. In her native

Mongolia,

traditional patterns of milking—the same as those used in Westernized countries

until the

1920s—are still followed: pasture-fed cows are milked only through the first

three

months of a new pregnancy. Their raw milk had only one-tenth the progesterone

that she

and her colleagues found in commercially produced milk in Japan.

Mongolian physician Ganmaa Davaasambuu has linked increased tumor formation and

growth in laboratory animals with chemically induced cancer to high levels of

hormones in

commercial milk. Seasonal milking practices among Mongolian nomads ensure that

cows

produce milk only during the first three months of a new pregnancy, when hormone

levels

are low. Because modern dairies, on the other hand, milk cows well into their

next

pregnancy, commercial milk often contains much higher levels of biologically

active

hormones.

In a 2002 study of cancer and diet in 42 countries, Ganmaa and colleagues found

that

countries with the highest consumption of dairy products suffered the highest

rates of

prostatic and testicular cancer. (A similar study Ganmaa did in 2005 showed much

the

same results for breast, ovarian, and uterine cancers.) In 2003, the group

focused on the

relationship between rising rates of these cancers and increased dairy

consumption in

Japan. Prior to World War II, the Japanese consumed very little milk, and rates

of these

cancers were low. But in the 1950s, a school-lunch program that included milk

was

instituted nationwide. Since that time, the intake of milk has increased

twentyfold, and the

incidence of prostate cancer has increased twenty-five-fold.

Still, such epidemiological evidence is circumstantial. But in a 2004 study that

used rats in

which mammary cancer had been induced, she and her colleagues found that rats

fed

low-fat milk (1 percent) were more likely to develop tumors, and in greater

numbers and

of larger size, than rats fed water or artificial milk. In a 2006 study, also in

rats, she

proved that the hormones in milk are biologically active in animals. Both adult

and

immature milk-fed rats showed increased uterine weight—the gold standard for

measuring the estrogen activity of food and other substances.

During her time at Harvard, which began with a year as a research fellow at the

School of

Public Health under Stare professor of epidemiology and nutrition Walter

Willett, she and

her colleagues have conducted two pilot studies. The first compared American

milk

(whole, whole organic, skim, and " shelf-stable " ultra-high temperature milk) to

milk from

Mongolia. Levels of hormones and growth factors were low in both American skim

milk

(hormones are carried in the milk fat) and Mongolian milk. In a subsequent

study,

Mongolian third-graders were fed U.S. commercial milk for a month. The good news

was

that a number of the children who had been vitamin D-deficient when the study

began

saw those deficiencies corrected. " Milk is a complex food that contains many

good things,

such as vitamin B, vitamin D, and calcium, " Ganmaa notes. But the Mongolian

schoolchildren's growth- hormone levels shot up 40 percent; and the children

grew, on

average, one centimeter during the month—a statistically significant increase,

according

to Ganmaa. " But we don't know if it will be sustained in the long term, whether

it will

affect their sexual maturation or their age at puberty, " she says. " One month is

too short. "

She and her Harvard colleagues are now seeking funding for a two-year study.

Based on what she has found so far, Ganmaa believes that cows in late pregnancy

should

not be milked—or, at least, that such milk should be labeled to indicate that it

comes

from a pregnant cow. In the meantime, it is reassuring to know that skim milk

from the

United States has low levels of hormones, just like the traditional stuff from

Mongolia.

~jonathan shaw

> Virginia

> Thanks for the update from the conference. Lots of interesting info. But I

still wonder

why

> those specific foods raise SHBG? Wish I had more info on the relationship. My

Internist

did

> state that alcohol blocks the bodies ability to metabolize e so that one makes

sense

with

> SHBG. But grains, milk products? No clue.

> Janet

>

>

> > Janet, your question about your SHBG lowering diet: the conference

> > speaker said the same thing as your internist. I would assume that

> > these items stimulate the formation of SHBG, which would make more E

> > attach to these proteins and not to the E receptors. We get little

> > enough E as it is!

> >

> > Virginia

> >

>

[Guest guest]

Do you know why they switch from talking about estrogen to progesterone and

then back to estrogen again? It’s not clear as a result.

Karima

there might be a reason that dairy may not be good for you or your hormones.

read below. Cows are kept pregnant and thus today we have high levels of

progesterone in our dairy products. There was a study recently conducted on

dairy and men testing levels of progesterone, can't find it now but it was

pretty mind blowing. I eliminated dairy after reading it. Karin

Gravid Bovines Modern Milk

the milk we drink today may not be nature's perfect food, " says Ganmaa

Davaasambuu, a Mongolian physician who is a fellow this year at the

Radcliffe Institute for Advanced Study. Even as the scientific community has

become interested in the effects of the bioactive substances found in

pesticides, says Ganmaa, not much attention has been paid to the naturally

occurring estrogens found in food, which are both far more abundant and more

biologically available than environmental estrogens. In fact, she is

concerned that the high levels of hormones found in commercially produced

milk may be harmful to human health. Estrogens and other growth factors have

been implicated in the development of hormone- dependent cancers: those

affecting the prostate, testes, ovaries, breasts, and uterus.

Skeptics note that humans have been drinking milk without apparent harm for

millennia, she says. But modern milk is different. Her concern stems not

from the use of bovine growth hormone (she excluded BGH-fed cows from her

studies), but from the fact that milk-producing cows in commercial dairies,

through use of artificial insemination and high-quality winter feed, are

kept pregnant and lactating 300 days a year. " Cows are like humans, " she

explains. " When they get pregnant, the estrogen levels in their blood, milk,

and urine increase. [Human pregnancy tests detect similar increases.] This

made me wonder˜since the cows are pregnant all the time, the hormone levels

in their milk should be really high. "

While earning her doctorate in environmental health in Japan, Ganmaa began

investigating the prevalence and effects of these naturally occurring

hormones. In her native Mongolia, traditional patterns of milking˜the same

as those used in Westernized countries until the 1920s˜are still followed:

pasture-fed cows are milked only through the first three months of a new

pregnancy. Their raw milk had only one-tenth the progesterone that she and

her colleagues found in commercially produced milk in Japan.

Mongolian physician Ganmaa Davaasambuu has linked increased tumor formation

and growth in laboratory animals with chemically induced cancer to high

levels of hormones in commercial milk. Seasonal milking practices among

Mongolian nomads ensure that cows produce milk only during the first three

months of a new pregnancy, when hormone levels are low. Because modern

dairies, on the other hand, milk cows well into their next pregnancy,

commercial milk often contains much higher levels of biologically active

hormones.

In a 2002 study of cancer and diet in 42 countries, Ganmaa and colleagues

found that countries with the highest consumption of dairy products suffered

the highest rates of prostatic and testicular cancer. (A similar study

Ganmaa did in 2005 showed much the same results for breast, ovarian, and

uterine cancers.) In 2003, the group focused on the relationship between

rising rates of these cancers and increased dairy consumption in Japan.

Prior to World War II, the Japanese consumed very little milk, and rates of

these cancers were low. But in the 1950s, a school-lunch program that

included milk was instituted nationwide. Since that time, the intake of milk

has increased twentyfold, and the incidence of prostate cancer has increased

twenty-five-fold.

Still, such epidemiological evidence is circumstantial. But in a 2004 study

that used rats in which mammary cancer had been induced, she and her

colleagues found that rats fed low-fat milk (1 percent) were more likely to

develop tumors, and in greater numbers and of larger size, than rats fed

water or artificial milk. In a 2006 study, also in rats, she proved that the

hormones in milk are biologically active in animals. Both adult and immature

milk-fed rats showed increased uterine weight˜the gold standard for

measuring the estrogen activity of food and other substances.

During her time at Harvard, which began with a year as a research fellow at

the School of Public Health under Stare professor of epidemiology and

nutrition Walter Willett, she and her colleagues have conducted two pilot

studies. The first compared American milk (whole, whole organic, skim, and

" shelf-stable " ultra-high temperature milk) to milk from Mongolia. Levels of

hormones and growth factors were low in both American skim milk (hormones

are carried in the milk fat) and Mongolian milk. In a subsequent study,

Mongolian third-graders were fed U.S. commercial milk for a month. The good

news was that a number of the children who had been vitamin D-deficient when

the study began saw those deficiencies corrected. " Milk is a complex food

that contains many good things, such as vitamin B, vitamin D, and calcium, "

Ganmaa notes. But the Mongolian schoolchildren's growth- hormone levels shot

up 40 percent; and the children grew, on average, one centimeter during the

month˜a statistically significant increase, according to Ganmaa. " But we

don't know if it will be sustained in the long term, whether it will affect

their sexual maturation or their age at puberty, " she says. " One month is

too short. " She and her Harvard colleagues are now seeking funding for a

two-year study.

Based on what she has found so far, Ganmaa believes that cows in late

pregnancy should not be milked˜or, at least, that such milk should be

labeled to indicate that it comes from a pregnant cow. In the meantime, it

is reassuring to know that skim milk from the United States has low levels

of hormones, just like the traditional stuff from Mongolia.

~jonathan shaw

[Guest guest]

I noticed and was confused by the same thing. The article seems to be using E and P interchangeably?

To: rhythmicliving From: karirom@...Date: Fri, 25 Apr 2008 20:50:22 -0700Subject: Re: Re: More Info from the ZRT Conference

Do you know why they switch from talking about estrogen to progesterone and then back to estrogen again? It’s not clear as a result. KarimaOn 4/25/08 9:17 AM, "bigbird3099" <bigbird3099> wrote:

there might be a reason that dairy may not be good for you or your hormones. read below. Cows are kept pregnant and thus today we have high levels of progesterone in our dairy products. There was a study recently conducted on dairy and men testing levels of progesterone, can't find it now but it was pretty mind blowing. I eliminated dairy after reading it. KarinGravid Bovines Modern Milkthe milk we drink today may not be nature's perfect food," says Ganmaa Davaasambuu, a Mongolian physician who is a fellow this year at the Radcliffe Institute for Advanced Study. Even as the scientific community has become interested in the effects of the bioactive substances found in pesticides, says Ganmaa, not much attention has been paid to the naturally occurring estrogens found in food, which are both far more abundant and more biologically available than environmental estrogens. In fact, she is concerned that the high levels of hormones found in commercially produced milk may be harmful to human health. Estrogens and other growth factors have been implicated in the development of hormone- dependent cancers: those affecting the prostate, testes, ovaries, breasts, and uterus.Skeptics note that humans have been drinking milk without apparent harm for millennia, she says. But modern milk is different. Her concern stems not from the use of bovine growth hormone (she excluded BGH-fed cows from her studies), but from the fact that milk-producing cows in commercial dairies, through use of artificial insemination and high-quality winter feed, are kept pregnant and lactating 300 days a year. "Cows are like humans," she explains. "When they get pregnant, the estrogen levels in their blood, milk, and urine increase. [Human pregnancy tests detect similar increases.] This made me wonder˜since the cows are pregnant all the time, the hormone levels in their milk should be really high."While earning her doctorate in environmental health in Japan, Ganmaa began investigating the prevalence and effects of these naturally occurring hormones. In her native Mongolia, traditional patterns of milking˜the same as those used in Westernized countries until the 1920s˜are still followed: pasture-fed cows are milked only through the first three months of a new pregnancy. Their raw milk had only one-tenth the progesterone that she and her colleagues found in commercially produced milk in Japan.Mongolian physician Ganmaa Davaasambuu has linked increased tumor formation and growth in laboratory animals with chemically induced cancer to high levels of hormones in commercial milk. Seasonal milking practices among Mongolian nomads ensure that cows produce milk only during the first three months of a new pregnancy, when hormone levels are low. Because modern dairies, on the other hand, milk cows well into their next pregnancy, commercial milk often contains much higher levels of biologically active hormones.In a 2002 study of cancer and diet in 42 countries, Ganmaa and colleagues found that countries with the highest consumption of dairy products suffered the highest rates of prostatic and testicular cancer. (A similar study Ganmaa did in 2005 showed much the same results for breast, ovarian, and uterine cancers.) In 2003, the group focused on the relationship between rising rates of these cancers and increased dairy consumption in Japan. Prior to World War II, the Japanese consumed very little milk, and rates of these cancers were low. But in the 1950s, a school-lunch program that included milk was instituted nationwide. Since that time, the intake of milk has increased twentyfold, and the incidence of prostate cancer has increased twenty-five-fold.Still, such epidemiological evidence is circumstantial. But in a 2004 study that used rats in which mammary cancer had been induced, she and her colleagues found that rats fed low-fat milk (1 percent) were more likely to develop tumors, and in greater numbers and of larger size, than rats fed water or artificial milk. In a 2006 study, also in rats, she proved that the hormones in milk are biologically active in animals. Both adult and immature milk-fed rats showed increased uterine weight˜the gold standard for measuring the estrogen activity of food and other substances.During her time at Harvard, which began with a year as a research fellow at the School of Public Health under Stare professor of epidemiology and nutrition Walter Willett, she and her colleagues have conducted two pilot studies. The first compared American milk (whole, whole organic, skim, and "shelf-stable" ultra-high temperature milk) to milk from Mongolia. Levels of hormones and growth factors were low in both American skim milk (hormones are carried in the milk fat) and Mongolian milk. In a subsequent study, Mongolian third-graders were fed U.S. commercial milk for a month. The good news was that a number of the children who had been vitamin D-deficient when the study began saw those deficiencies corrected. "Milk is a complex food that contains many good things, such as vitamin B, vitamin D, and calcium," Ganmaa notes. But the Mongolian schoolchildren's growth- hormone levels shot up 40 percent; and the children grew, on average, one centimeter during the month˜a statistically significant increase, according to Ganmaa. "But we don't know if it will be sustained in the long term, whether it will affect their sexual maturation or their age at puberty," she says. "One month is too short." She and her Harvard colleagues are now seeking funding for a two-year study.Based on what she has found so far, Ganmaa believes that cows in late pregnancy should not be milked˜or, at least, that such milk should be labeled to indicate that it comes from a pregnant cow. In the meantime, it is reassuring to know that skim milk from the United States has low levels of hormones, just like the traditional stuff from Mongolia.~jonathan shaw

Express yourself wherever you are. Mobilize!

[Guest guest]

I think the point of the article has more to do with the amount of hormones

found in milk,

be it estrogen, progesterone or human growth. I will post the other article that

tested for

progesterone in modern milk.

Karin

> there might be a reason that dairy may not be good for you or your hormones.

read

below. Cows are kept pregnant and thus today we have high levels of progesterone

in our

dairy products. There was a study recently conducted on dairy and men testing

levels of

progesterone, can't find it now but it was pretty mind blowing. I eliminated

dairy after

reading it. KarinGravid Bovines Modern Milkthe milk we drink today may not be

nature's

perfect food, " says Ganmaa Davaasambuu, a Mongolian physician who is a fellow

this year

at the Radcliffe Institute for Advanced Study. Even as the scientific community

has become

interested in the effects of the bioactive substances found in pesticides, says

Ganmaa, not

much attention has been paid to the naturally occurring estrogens found in food,

which

are both far more abundant and more biologically available than environmental

estrogens.

In fact, she is concerned that the high levels of hormones found in commercially

produced

milk may be harmful to human health. Estrogens and other growth factors have

been

implicated in the development of hormone- dependent cancers: those affecting the

prostate, testes, ovaries, breasts, and uterus.Skeptics note that humans have

been

drinking milk without apparent harm for millennia, she says. But modern milk is

different.

Her concern stems not from the use of bovine growth hormone (she excluded

BGH-fed

cows from her studies), but from the fact that milk-producing cows in commercial

dairies,

through use of artificial insemination and high-quality winter feed, are kept

pregnant and

lactating 300 days a year. " Cows are like humans, " she explains. " When they get

pregnant,

the estrogen levels in their blood, milk, and urine increase. [Human pregnancy

tests detect

similar increases.] This made me wonder˜since the cows are pregnant all the

time, the

hormone levels in their milk should be really high. " While earning her doctorate

in

environmental health in Japan, Ganmaa began investigating the prevalence and

effects of

these naturally occurring hormones. In her native Mongolia, traditional patterns

of

milking˜the same as those used in Westernized countries until the 1920s˜are

still

followed: pasture-fed cows are milked only through the first three months of a

new

pregnancy. Their raw milk had only one-tenth the progesterone that she and her

colleagues found in commercially produced milk in Japan.Mongolian physician

Ganmaa

Davaasambuu has linked increased tumor formation and growth in laboratory

animals with

chemically induced cancer to high levels of hormones in commercial milk.

Seasonal milking

practices among Mongolian nomads ensure that cows produce milk only during the

first

three months of a new pregnancy, when hormone levels are low. Because modern

dairies,

on the other hand, milk cows well into their next pregnancy, commercial milk

often

contains much higher levels of biologically active hormones.In a 2002 study of

cancer and

diet in 42 countries, Ganmaa and colleagues found that countries with the

highest

consumption of dairy products suffered the highest rates of prostatic and

testicular

cancer. (A similar study Ganmaa did in 2005 showed much the same results for

breast,

ovarian, and uterine cancers.) In 2003, the group focused on the relationship

between

rising rates of these cancers and increased dairy consumption in Japan. Prior to

World War

II, the Japanese consumed very little milk, and rates of these cancers were low.

But in the

1950s, a school-lunch program that included milk was instituted nationwide.

Since that

time, the intake of milk has increased twentyfold, and the incidence of prostate

cancer has

increased twenty-five-fold.Still, such epidemiological evidence is

circumstantial. But in a

2004 study that used rats in which mammary cancer had been induced, she and her

colleagues found that rats fed low-fat milk (1 percent) were more likely to

develop

tumors, and in greater numbers and of larger size, than rats fed water or

artificial milk. In

a 2006 study, also in rats, she proved that the hormones in milk are

biologically active in

animals. Both adult and immature milk-fed rats showed increased uterine

weight˜the

gold standard for measuring the estrogen activity of food and other

substances.During her

time at Harvard, which began with a year as a research fellow at the School of

Public

Health under Stare professor of epidemiology and nutrition Walter Willett, she

and her

colleagues have conducted two pilot studies. The first compared American milk

(whole,

whole organic, skim, and " shelf-stable " ultra-high temperature milk) to milk

from

Mongolia. Levels of hormones and growth factors were low in both American skim

milk

(hormones are carried in the milk fat) and Mongolian milk. In a subsequent

study,

Mongolian third-graders were fed U.S. commercial milk for a month. The good news

was

that a number of the children who had been vitamin D-deficient when the study

began

saw those deficiencies corrected. " Milk is a complex food that contains many

good things,

such as vitamin B, vitamin D, and calcium, " Ganmaa notes. But the Mongolian

schoolchildren's growth- hormone levels shot up 40 percent; and the children

grew, on

average, one centimeter during the month˜a statistically significant increase,

according to

Ganmaa. " But we don't know if it will be sustained in the long term, whether it

will affect

their sexual maturation or their age at puberty, " she says. " One month is too

short. " She

and her Harvard colleagues are now seeking funding for a two-year study.Based on

what

she has found so far, Ganmaa believes that cows in late pregnancy should not be

milked˜or, at least, that such milk should be labeled to indicate that it comes

from a

pregnant cow. In the meantime, it is reassuring to know that skim milk from the

United

States has low levels of hormones, just like the traditional stuff from

Mongolia.~jonathan

shaw

>

>

>

>

>

>

>

> _________________________________________________________________

> Express yourself wherever you are. Mobilize!

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