I found  a website, [did not bookmark] where the author states that if
you take magnesium, that the intake of CA is not necessary; that
through chemical reactions the body makes it's own CA. He used the
chicken as an example e.g. the chicken pecks all day on rocks, and
makes it's shell w/o ever taking CA. I cannot find the article again.
I need help in learning more about this!

Hi giga39-ga,

I believe the site you found was Balanced Live's 'Electric Nutrition'
page. The entire article is here:
http://live-well.electriclife.net/Main.asp?info/Electric_Nutrition.htm

The article says "Several decades ago, biologist Louis Kervran
wondered how his father’s chickens were able to lay eggs that had
strong shells even though their diet was very low in calcium. Kervran
performed a controlled study proving that a chicken fed only a
low-calcium diet of oats could still produce four times as much
calcium as she had ingested by transforming potassium from the oats
into calcium!"

The article then displays pictures of sodium, potassium and magnesium
atoms forming calcium.

I hope this is the website you found, if not, I'm sure it will help
you in your study. If you are unhappy with this website, please
request a clarification.

Good luck with your study and have a merry Christmas!

Jenjerina-ga

Search strategy: google search with keywords "body chicken calcium"

Dear Giga39,

First let me say that I'm sure the web site Jenjerina mentions is what
you are looking for, so the answer is a good one.

But you may like to be a little sceptical about what you read on that
web site.  First, remember that it is an advertising site and its main
purpose appears to be selling you its products.

Secondly, attractive though the nuclear arithmetic may be, you may
want to ask what evidence there may be that such processes that are
described actually occur.  If they do, they are not "chemical
reactions", as you describe them, but actually nuclear reactions. 
Combining magnesium and oxygen to give calcium is not so much
combining atoms - which _would_ be chemistry - as combining the nuclei
of those atoms: this is better described as alchemy or as nuclear
fusion.  It's the sort of process that occurs in a nuclear fusion
reactor or a hydrogen bomb.

At a guess (I haven't checked the details) the fusion of magnesium and
oxygen nuclei would release large amounts of energy, so any body
(chicken or human) performing this process would be acting as a fusion
reactor and consequently generating energy - probably a great deal of
it.  But the catch is that, before this fusion could take place, the
nuclei would have to be thrown together very forcefully, against their
considerable electrostatic repulsion, and the sort of energy required
by each pair of reacting nuclei would simply not be available from
chemical or biological processes.

It is worth mentioning that, if such nuclear processes could be
harnessed in this way, they could be put to good use in two ways. 
First, the classic problem of alchemy - how to convert base metal into
precious metal such as gold - would have been solved.  Secondly, such
cold fusion could provide vast quantities of energy without the need
for mining fuels or the creation of any greenhouse gases.  You might
like to ponder why the web site author is just selling cosmetic
products if his theories would allow him to solve the world's energy
and environmental problems at a stroke in this way.

This is just an opinion, of course, albeit an educated one: yours may
vary.

Carnegie