Re: Re: Article on Monks

[Guest guest]

Dave wrote:

>

> Have never heard mention before that calcium in the diet could be

> detrimental to men's health. Anyone have information on this?

>

> Dave

>

>

>

There is also the suggestions that Calcium is bad for the Prostate. Who

knows?

If I can do my Francesca Imitation:

Moderation!

But seriously I am reluctant to endorse supplementation; but I still do

it. I think that as I run out I will only replace a few. Which ones,

that is the question.

I will keep:

Fish oil

a modest B complex (I am not too happy with the one I have too high)

Brazil nuts

Chromium

Cronometer says my calcium is low so right now I supplement. But I

wonder how they get the amount that is " normal " consider the differences

between Men and women Al mentioned.

Positive Dennis

[Guest guest]

> There is also the suggestions that Calcium is bad

> for the Prostate. Who

> knows?

As a male, I would avoid any excess calcium (>

1000-1200 mgs per day). I am including 2 recent

studies below on the topic.

There have been article posted here a few months back

showing the when Vit D is adequate, the need for

calcium may not be as great as thought.

Also, these 2 reports on Calcium from the NAS and the

WHO are worth reading.

Here is the NAS

http://newton.nap.edu/catalog/5776.html

the other and in my opinion, even better, analysis..

From the WHO

http://whqlibdoc.who.int/publications/2004/9241546123_chap4.pdf

Regards

Jeff

Int J Cancer. 2007 Jun 1;120(11):2466-73.

A prospective study of dietary calcium, dairy products

and prostate cancer risk (Finland).

High dietary intakes of calcium and dairy products

have been hypothesized to enhance prostate cancer

risk, but available prospective data regarding these

associations are inconsistent. We examined dietary

intakes of calcium and dairy products in relation to

risk of prostate cancer in the Alpha-Tocopherol,

Beta-Carotene (ATBC) Cancer Prevention Study, a cohort

of 29,133 male smokers aged 50-69 years at study

entry. Dietary intake was assessed at baseline using a

validated 276-item food use questionnaire.

proportional hazards regression was used to adjust for

known or suspected risk factors for prostate cancer.

During 17 years of follow-up, we ascertained 1,267

incident cases of prostate cancer. High versus low

intake of dietary calcium was associated with a marked

increase in prostate cancer risk. The multivariate

relative risk (RR) of prostate cancer for > or =2,000

mg/day compared to <1,000 mg/day of calcium intake was

1.63 (95% confidence interval (CI), 1.27-2.10; p trend

< 0.0001). Total dairy intake was also positively

associated with risk of prostate cancer. The

multivariate RR of prostate cancer comparing extreme

quintiles of intake was 1.26 (95% CI, 1.04-1.51; p

trend = 0.03). However, no association with total

dairy intake remained after we adjusted for calcium (p

trend = 0.17). Findings were similar by stage and

grade of prostate cancer. The results from this large

prospective study suggest that intake of calcium or

some related component contained in dairy foods is

associated with increased prostate cancer risk.

PMID: 17278090

Cancer Epidemiol Biomarkers Prev. 2006

Feb;15(2):203-10. A prospective study of calcium

intake and incident and fatal prostate cancer.

Prostate cancer is the most common incident cancer and

the second leading cause of cancer mortality in U.S.

males. Higher milk intake has been relatively

consistently associated with an increased risk of

prostate cancer, especially advanced prostate cancer.

Some data suggest that high intake of calcium might

account for this association, but this relationship

remains controversial. We hypothesized that high

calcium intake, possibly by lowering 1,25(OH)2 vitamin

D levels, is associated with poorer differentiation in

prostate cancer and thereby with fatal prostate

cancer. We examined calcium intake in relation to

prostate cancer risk using data from the Health

Professionals Follow-up Study, a prospective cohort

study of 47,750 male health professionals with no

history of cancer other than nonmelanoma skin cancer

at baseline. We assessed total, dietary, and

supplementary calcium intake in 1986, 1990, 1994, and

1998, using a validated food frequency questionnaire.

We calculated the multivariable relative risk (RR) and

95% confidence intervals (95% CI) using

proportional hazards regression. Over 16 years of

follow-up, we identified 3,544 total cases of prostate

cancer, 523 advanced (extraprostatic) cases, and 312

fatal cases. Higher calcium intake was not appreciably

associated with total or nonadvanced prostate cancer

but was associated with a higher risk of advanced and

fatal prostate cancer [for fatal prostate cancer,

compared with men whose long-term calcium intake was

500-749 mg/d (excluding supplement use of <5 years);

those with intakes of 1,500-1,999 mg/d had a RR, 1.87;

95% CI, 1.17-3.01; and those with > or = 2,000 mg/d

had a RR, 2.43; 95% CI, 1.32-4.48; P(trend) = 0.003].

Dietary calcium and supplementary calcium were

independently associated with an increased risk. For

high-grade prostate cancer (Gleason > or = 7), an

association was observed for high versus low calcium

intake (RR, 1.89; 95% CI, 1.32-2.71; P(trend) =

0.005), but a nonsignificant, inverse association was

observed for organ-confined, low-grade prostate cancer

(RR, 0.79; 95% CI, 0.50-1.25; P(trend) = 0.09). In a

sample of this cohort, higher calcium intake was

associated with lower circulating 1,25(OH)2 vitamin D

levels. Our findings suggest that calcium intakes

exceeding 1,500 mg/d may be associated with a decrease

in differentiation in prostate cancer and ultimately

with a higher risk of advanced and fatal prostate

cancer but not with well-differentiated,

organ-confined cancers.

PMID: 16492906