Ron:

Your points are well taken; nevertheless, loss of muscle results in loss of
bone calcium. NASA noted in the early manned space flights of the 60s that
calcium loss was a noteworthy problem. Their early solution was to
supplement calcium along with other electrolyte. With the skylab projects of
the 70s involving much longer flights, loss of muscle fiber, strength, and
upon return to Earth stability focused attention to sarcopenia arising from
longer periods in zero gravity. Since then other studies have noted the same
consequences of long term bed rest - some experiments having human subjects
remain bedridden for six months.

If you've ever carved meat from its attachment to bone you'll understand how
inseparably linked the two are as one operational unit. Stressing muscle
stresses bone, as well as enhancing blood flow bringing nutrients to both.
Atrophy of one is atrophy to the other.

-----Original Message-----
From: Paleolithic Eating Support List [mailto:[log in to unmask]]
On Behalf Of Ron Hoggan
Sent: Tuesday, January 05, 2010 2:27 PM
To: [log in to unmask]
Subject: Re: Art DeVany's book: "The New Evolution Diet"

Hi Ken,
 I agree with much of what you say and Joseph says. However, in support 
of your perspective, I would argue that the calcium losses
are likely due to factors such as magnesium deficiency (which is needed 
for parathyroid maintenance) autoimmunity (resulting from
neolithic food consumption) and acidity (resulting from grain, dairy, 
etc.,  consumption).

Activity certainly is a big factor as well.
Best Wishes,
Ron