More bad news for PUFAs

[Guest guest]

I don't know if this study is familiar to any of you or if its results

were ever discussed on this board. It does not implicate PUFAs as the

principal factor affecting bone loss but certainly as one worsening it

(it begs the questions:to the point where otherwise natural bone loss

becomes a serious problem?)

Conclusions

The results of this study suggest that, although menopausal status and

HRT use are the overriding factors affecting bone loss in women in

their early fifties, dietary calcium may help reduce bone loss at the

hip, and modest intakes of alcohol (equivalent to 1–2 glasses of

wine/d) may help reduce bone loss at the spine. However, intakes of

MUFAs and PUFAs (and possibly vitamin A) appear to worsen bone loss,

and the detrimental effect of PUFAs is more pronounced at lower

calcium intakes. This finding supports a link between PUFAs and

reduced calcium absorption in which a possible mechanism is the

formation of calcium–fatty acid soaps. For women who are still

menstruating, nutrients associated with fruit and vegetable intakes

appear to be protective, possibly because of their beneficial effect

on acid-base balance or because they are sources of nutrients that are

important for bone health.

http://www.ajcn.org/cgi/content/full/79/1/155