Tara & Ivana (GA)
Member Since 2015
Howdy all,
I'm after clarification of comparing nutritional values of canned food, specifically for carbs of course, and also for phosphorous (Ivana is also a CKD kitty). I know about 'as fed' which is the % in the whole can itself including everything; I know there is the 'dry matter' calculation which is with moisture removed; and I know there is the 'calorie %' which is carbs+protein+fat=100%.
Since Ivana's FD diagnosis, I've been using the 'as fed' for carbs, and then later when she was diagnosed with CKD we used the mg/100kCal to measure the phosphorous. I've just been told in a CKD group that the dry matter is what we should use. I understood that DM was good for comparing wet to dry, but for wet to wet there's not really much advantage in using DM. And the reality is that if Ivana gets 1/3 can of food that's say 5% moisture (number plucked from thin air), I'm not going to go calculating exactly how much of a tin she should get if another brand is 7% moisture. So really, the moisture should be included in the calculation in my view, because I count it in her serving size. Does a small variance make that much difference anyway?
And for the phosphorous being mg/100kCal, moisture wouldn't even be considered in the equation anyway because it has zero kCal, right? So that doesn't even matter - 100kCal is 100kCal, no matter how much moisture is in there.
So I guess I just really wanted to clarify if I've been using the right measurement, or if I need to re-do my lists
(Tagging @Chris & China because we've talked about this before.)
I'm after clarification of comparing nutritional values of canned food, specifically for carbs of course, and also for phosphorous (Ivana is also a CKD kitty). I know about 'as fed' which is the % in the whole can itself including everything; I know there is the 'dry matter' calculation which is with moisture removed; and I know there is the 'calorie %' which is carbs+protein+fat=100%.
Since Ivana's FD diagnosis, I've been using the 'as fed' for carbs, and then later when she was diagnosed with CKD we used the mg/100kCal to measure the phosphorous. I've just been told in a CKD group that the dry matter is what we should use. I understood that DM was good for comparing wet to dry, but for wet to wet there's not really much advantage in using DM. And the reality is that if Ivana gets 1/3 can of food that's say 5% moisture (number plucked from thin air), I'm not going to go calculating exactly how much of a tin she should get if another brand is 7% moisture. So really, the moisture should be included in the calculation in my view, because I count it in her serving size. Does a small variance make that much difference anyway?
And for the phosphorous being mg/100kCal, moisture wouldn't even be considered in the equation anyway because it has zero kCal, right? So that doesn't even matter - 100kCal is 100kCal, no matter how much moisture is in there.
So I guess I just really wanted to clarify if I've been using the right measurement, or if I need to re-do my lists
(Tagging @Chris & China because we've talked about this before.)
