Hi jgr789 –
That bad news is that it is necessary to perform some mathematical calculations in order to compare the nutrient values of kibble and canned foods, the good news is that the math is fairly straight forward.
1. Determine the percent dry matter in the canned food by subtracting the % moisture (listed on the label) from 100%.
2. Divide as fed % value of the nutrient you’re interested in by the % dry matter that you calculated in the previous step.
3. You should get a decimal – multiply this decimal by 100% and you’ll have the % of the nutrient on a dry matter basis.
So, for example, let’s say a canned food claims to contain 80% moisture and 5% fat:
1. 100% – 80% = 20% dry matter
2. 5% fat as fed/20% dry matter = 0.25
3. 0.25 X 100% = 25% fat on a dry matter basis
Hope this helps!
