Re: Tea Helps Preserve Bone Mass

[Guest guest]

Hi folks:

And this paper suggests that the effect of tea is not derived from

the milk some people put in it:

" No significant relationship was observed by age for low milk intake

and hip fracture risk " :

Osteoporos Int. 2005 Jul;16(7):799-804.

" A meta-analysis of milk intake and fracture risk: low utility for

case finding. "

Kanis JA, Johansson H, Oden A, De Laet C, ell O, Eisman JA, Mc

Closkey E, Mellstrom D, Pols H, Reeve J, Silman A, Tenenhouse A.

WHO Collaborating Centre for Metabolic Bone Diseases, University of

Sheffield Medical School, Beech Hill Road, Sheffield , S10 2RX, UK.

" A low intake of calcium is widely considered to be a risk factor for

future fracture. The aim of this study was to quantify this risk on

an international basis and to explore the effect of age, gender and

bone mineral density (BMD) on this risk. We studied 39,563 men and

women (69% female) from six prospectively studied cohorts comprising

EVOS/EPOS, CaMos, DOES, the Rotterdam study, the Sheffield study and

a cohort from Gothenburg. Cohorts were followed for 152,000 person-

years. The effect of calcium intake as judged by the intake of milk

on the risk of any fracture, any osteoporotic fracture and hip

fracture alone was examined using a Poisson model for each sex from

each cohort. Covariates examined were age and BMD. The results of the

different studies were merged by using the weighted beta-

coefficients. A low intake of calcium (less than 1 glass of milk

daily) was not associated with a significantly increased risk of any

fracture, osteoporotic fracture or hip fracture. There was no

difference in risk ratio between men and women. When both sexes were

combined there was a small but non-significant increase in the risk

of osteoporotic and of hip fracture. There was also a small increase

in the risk of an osteoporotic fracture with age which was

significant at the age of 80 years (RR = 1.15; 95% CI = 1.02-1.30)

and above. The association was no longer significant after adjustment

for BMD. No significant relationship was observed by age for low milk

intake and hip fracture risk. We conclude that a self-reported low

intake of milk is not associated with any marked increase in fracture

risk and that the use of this risk indicator is of little or no value

in case-finding strategies. "

PMID: 15502959

Rodney.

--- In , " Rodney " <perspect1111@...>

wrote:

>

> Hi folks:

>

> Not for the first time it appears tea consumption reduces loss of

> bone mass. In this study, female, post-menopausal tea drinkers

lost

> 60% less hip bone mass over four years than non-tea drinkers:

>

> ((4.0-1.6)/4.0) x 100 = 60%

>

> " Tea may help women strengthen their hip bones, preventing the risk

> of fractures commonly associated with osteoporosis, according to

> researchers.

>

> " The Australian study, published in the American Journal of

Clinical

> Nutrition, was conducted using 1,500 female volunteers, ages 70 to

> 85, over a five-year period, and tracked the effects of tea

> consumption on their bone density.

>

> " The hip bone mineral density of participants was measured during

the

> first and fifth year of the study. ............. The tea drinkers

> lost approximately 1.6 percent of their hip bone mineral density

> while non-tea drinkers lost 4 percent. "

>

> SOURCE: http://www.foxnews.com/story/0,2933,300997,00.html

>

> A 60% reduction is astonishing to me for such a

trivial 'treatment'.

> Especially when you consider what tea is .......... 99.99999%

water

> and 0.000001% active ingredient!

>

> The study appears to be PMID: 17921409. Devine A et al.

>

> Rodney.

>

[Guest guest]

Then tea-drinking cultures (England, China, Japan) should have much lower incidence of osteo than non-tea drinkers. Do we know if this is the case?

From: Rodney <perspect1111@...>

Reply-< >

Date: Thu, 11 Oct 2007 16:00:37 -0000

< >

Subject: [ ] Tea Helps Preserve Bone Mass

Hi folks:

Not for the first time it appears tea consumption reduces loss of

bone mass. In this study, female, post-menopausal tea drinkers lost

60% less hip bone mass over four years than non-tea drinkers:

((4.0-1.6)/4.0) x 100 = 60%

" Tea may help women strengthen their hip bones, preventing the risk

of fractures commonly associated with osteoporosis, according to

researchers.

" The Australian study, published in the American Journal of Clinical

Nutrition, was conducted using 1,500 female volunteers, ages 70 to

85, over a five-year period, and tracked the effects of tea

consumption on their bone density.

" The hip bone mineral density of participants was measured during the

first and fifth year of the study. ............. The tea drinkers

lost approximately 1.6 percent of their hip bone mineral density

while non-tea drinkers lost 4 percent. "

SOURCE: http://www.foxnews.com/story/0,2933,300997,00.html

A 60% reduction is astonishing to me for such a trivial 'treatment'.

Especially when you consider what tea is .......... 99.99999% water

and 0.000001% active ingredient!

The study appears to be PMID: 17921409. Devine A et al.

Rodney.

[Guest guest]

According to The China Study (T. Colin ) page 209, chart

10.3, the incidence of hip fracture in the UK is about 60% of that in

the US; in Asian countries, it is significantly lower still.

attributes the low rate of bone fractures in Asian countries

to their low intake of animal protein, but there certainly could be

other factors at work, such as tea-drinking!

-Dave

>

> Then tea-drinking cultures (England, China, Japan) should have much

lower

> incidence of osteo than non-tea drinkers. Do we know if this is

the case?

>

>

> From: Rodney <perspect1111@...>

> Reply-< >

> Date: Thu, 11 Oct 2007 16:00:37 -0000

> < >

> Subject: [ ] Tea Helps Preserve Bone Mass

>

>

>

>

>

> Hi folks:

>

> Not for the first time it appears tea consumption reduces loss of

> bone mass. In this study, female, post-menopausal tea drinkers lost

> 60% less hip bone mass over four years than non-tea drinkers:

>

> ((4.0-1.6)/4.0) x 100 = 60%

>

> " Tea may help women strengthen their hip bones, preventing the risk

> of fractures commonly associated with osteoporosis, according to

> researchers.

>

> " The Australian study, published in the American Journal of Clinical

> Nutrition, was conducted using 1,500 female volunteers, ages 70 to

> 85, over a five-year period, and tracked the effects of tea

> consumption on their bone density.

>

> " The hip bone mineral density of participants was measured during

the

> first and fifth year of the study. ............. The tea drinkers

> lost approximately 1.6 percent of their hip bone mineral density

> while non-tea drinkers lost 4 percent. "

>

> SOURCE: http://www.foxnews.com/story/0,2933,300997,00.html

>

> A 60% reduction is astonishing to me for such a trivial 'treatment'.

> Especially when you consider what tea is .......... 99.99999%

water

> and 0.000001% active ingredient!

>

> The study appears to be PMID: 17921409. Devine A et al.

>

> Rodney.

>

[Guest guest]

Thanks Dave.

Those data are interesting. attributes them to Hegsted who

most people around here, and elsewhere, regard as a very serious

source.

The fracture rate, as Dave noted, was shown to be 40% less in the UK

than in the US. And, even more impressive, 70% lower in Hongkong,

and 85% lower in Singapore. And those are the only two asian

countries for which data was provided, so it does not look like

manipulated evidence. (The purpose of showing the chart had nothing

at all to do with the effects of tea, either, incidentally).

So this does seem to be some perhaps-confirming evidence.

Rodney.

-- In , " orb85750 " <orb85750@...> wrote:

>

> According to The China Study (T. Colin ) page 209, chart

> 10.3, the incidence of hip fracture in the UK is about 60% of that

in

> the US; in Asian countries, it is significantly lower still.

> attributes the low rate of bone fractures in Asian

countries

> to their low intake of animal protein, but there certainly could be

> other factors at work, such as tea-drinking!

>

> -Dave

>

>

> >

> > Then tea-drinking cultures (England, China, Japan) should have

much

> lower

> > incidence of osteo than non-tea drinkers. Do we know if this is

> the case?

> >

> >

> > From: Rodney <perspect1111@>

> > Reply-< >

> > Date: Thu, 11 Oct 2007 16:00:37 -0000

> > < >

> > Subject: [ ] Tea Helps Preserve Bone Mass

> >

> >

> >

> >

> >

> > Hi folks:

> >

> > Not for the first time it appears tea consumption reduces loss of

> > bone mass. In this study, female, post-menopausal tea drinkers

lost

> > 60% less hip bone mass over four years than non-tea drinkers:

> >

> > ((4.0-1.6)/4.0) x 100 = 60%

> >

> > " Tea may help women strengthen their hip bones, preventing the

risk

> > of fractures commonly associated with osteoporosis, according to

> > researchers.

> >

> > " The Australian study, published in the American Journal of

Clinical

> > Nutrition, was conducted using 1,500 female volunteers, ages 70 to

> > 85, over a five-year period, and tracked the effects of tea

> > consumption on their bone density.

> >

> > " The hip bone mineral density of participants was measured during

> the

> > first and fifth year of the study. ............. The tea drinkers

> > lost approximately 1.6 percent of their hip bone mineral density

> > while non-tea drinkers lost 4 percent. "

> >

> > SOURCE: http://www.foxnews.com/story/0,2933,300997,00.html

> >

> > A 60% reduction is astonishing to me for such a

trivial 'treatment'.

> > Especially when you consider what tea is .......... 99.99999%

> water

> > and 0.000001% active ingredient!

> >

> > The study appears to be PMID: 17921409. Devine A et al.

> >

> > Rodney.

> >

>