Neil Timms wrote:
> I've been supplementing for a few months with D3 - but also taking
> work breaks outside if the sun is out whenever I can.
> 
> I agree about our levels of D 3 being lower generally than they should
> but I also understand that we should keep up our Calcium intake if on
> D3 supplements to avoid possible bone loss issues - D3 helps to
> regulate circulating Calcium and if we don't take in enough with our
> diet then we have to provide it from our own stock - bones.
> 
> On that point what are the best Paleo sources for Calcium?
> 
> Cheers
> 
> Neil

Here are some comments I posted in another group some time ago.

-- 

Calcium supplementation increases heart attacks and strokes in large
controlled study.

Here is the URL for the full New Zealand study, not just
the abstract, as published in the British Medical Journal. It was a
study that included n=1471 participants randomized into two groups, a
larger n than many studies. Given the advice on taking calcium AND the
lack of medical research to support it's alleged cardiovascular
benefits, this study adds to the body of knowledge.

Vascular events in healthy older women receiving calcium
supplementation: randomised controlled trial
<http://www.bmj.com/cgi/content/full/bmj.39440.525752.BEv1>

Here is the results paragraph, notice that not only are cardiovascular
events dramatically increased with calcium supplementation, but
strokes increased significantly as well. Also, if you read farther into
the study, you will see a review of available literature and recent
research and might identify with the speculation that taking a LESS
bio-available form of calcium likely results in fewer but still
significants increases in death rates:

"Results Myocardial infarction was more commonly reported in the calcium
group than in the placebo group (45 events in 31 women v 19 events in 14
women, P=0.01). The composite end point of myocardial infarction,
stroke, or sudden death was also more common in the calcium group (101
events in 69 women v 54 events in 42 women, P=0.008). After adjudication
myocardial infarction remained more common in the calcium group (24
events in 21 women v 10 events in 10 women, relative risk 2.12, 95%
confidence interval 1.01 to 4.47). For the composite end point 61 events
were verified in 51 women in the calcium group and 36 events in 35 women
in the placebo group (relative risk 1.47, 0.97 to 2.23). When unreported
events were added from the national database of hospital admissions in
New Zealand the relative risk of myocardial infarction was 1.49 (0.86 to
2.57) and that of the composite end point was 1.21 (0.84 to 1.74). The
respective rate ratios were 1.67 (95% confidence intervals 0.98 to 2.87)
and 1.43 (1.01 to 2.04); event rates: placebo 16.3/1000 person years,
calcium 23.3/1000 person years. For stroke (including unreported events)
the relative risk was 1.37 (0.83 to 2.28) and the rate ratio was 1.45
(0.88 to 2.49)."


-- 

Steve - [log in to unmask]

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