So if a dog (or rabbit) food says in the guaranteed analysis...

SaltyNuts

Platinum Member
May 1, 2001
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that is is minimum, let's say, 0.9% calcium, what does that mean exactly? Is that based on weight? Or some kind of volume thing? If weight, I guess I would take the total grams per serving, multiply that by 0.9%, and that's how much calcium it would have in grams? But isn't calcium typically bound to something? Like calcium carbonate for example. So then would I have to make some further adjustment to figure out the minimum amount of true calcium? Or that should already be taken into account in the 0.9% figure?

Thanks!
 

lxskllr

No Lifer
Nov 30, 2004
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The question you're asking is regulatory in nature, and you'll probably have to read a lenghty book to get your answer.
 
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KillerCharlie

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Aug 21, 2005
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It's probably mass of the calcium ions.

For example, nutrition labels on human food will list the sodium ion mass. What it's bonded to doesn't matter in the label. The sodium mass listed on the label could be from table salt (bonded with chloride) or baking soda (bonded with bicarbonate; HCO3).