carb calculation help

[kalypso]

Hello!!
I am considering leonardo cans, and I need help calculating %Kcals from carbs.
Analytical constituents are as follows for all flavors:
protein 10%, fat 5%, crude ash 2%, crude fiber 0.3 %, moisture 80%
I put this on a carb and calorie calculator http://fnae.org/carbcalorie.html
and I get that 11 of 96 calories come from carbs, which means 11.5% Kcals are from carbs.
Then I check the excel here: https://docs.google.com/spreadsheet...xtySA/pubhtml?usp=gmail_thread&urp=gmail_link
and I see that leonardo rich in liver has 3.7% Kcals from carbs whereas leonardo rich in duck is not in the list.
I get that only flavors with less than 10% are in the list but
how can there be so much difference between my calculation and the excel
and why is rich in duck not in the list
when analytical constituents on the labels are the same?

 

[LizzieInTexas]

I never tried to calculate.

This post might help you. Good luck

http://www.felinediabetes.com/FDMB/threads/calculating-calories-from-carbohydrates.204051/

 

[kalypso]

Thanks for your reply Lizzie
I use the same way to calculate, but we start from different analysis values.
Namely, on the label and on zooplus it lists: 10 5 0.3 2 80, but the uk food excel starts from different values:
Leonardo Rich In Ocean Fish 11.0 6.1 0.3 2.0 80.0
Leonardo Rich In Rabbit 11.0 6.0 0.3 2.0 80.0
Leonardo Pure Poultry 3.1 11.2 5.7 0.3 2.0 80.0
Leonardo Rich In Liver 10.7 6.2 0.3 1.8 80.0
(that was protein, fat, fibre, ash, moisture)
I really don't get why it is on the list.

 

[LizzieInTexas]

Maybe this will help also?

http://www.felinecrf.org/catfood_data_how_to_use.htm#assess_food_content

You might try and contact the manufacturer and ask them for the guaranteed analysis numbers.

I completely sympathize with your delima.

 

[kalypso]

I did contact them already, and they referred me to the values they have on the site:
"Well that is exactly what is shown on the homepage, those are the „real values“. ",
which are the same for all different flavors and give a Kcal % from carbs higher than foods that should be on the list!