Calcium/bones

[quizzelsnatch]

what percent of your bones is made of calcium?

 

[DaTT]

28.7665

 

[Kalvin00]

3.141592654%, roughly. It can vary a little.

 

[quizzelsnatch]

... :disgust:

 

[DanJ]

Google's 3rd result when searching your exact question:

Calcium: Build Strong Bones
... Ninety-nine percent of your body's calcium is stored in your bones. ...
Bone-meal supplements are made from finely ground animal bones. ...
http://www.ext.vt.edu/pubs/nutrition/348-019/348-019.html

Though I guess that doesn't really answer your question; since its the reverse of it 🙂

 

[TheChort]

~20% by weight

Bones are made up of Collagen and Hydroxyapatite (Calcium Phosphate) in about 50/50 distribution.
Calcium Phosphate is Ca10(PO4)6(OH)2. It has mol weight of 1004. The calcium in there has mol weight of 400. Thats ~40%. Take half of that to account for collagen, and you get your answer.

a source

 

[SLU MD]

problem with calcium is that if you dont eat enough of it, your body will break down bones to get the calcium it desperately needs for muscle contractions (like your heart, and all skeletal muscle). so make sure you get enough calcium

slu MD