It is normally found on the back of the packaging.
Click here to read more about AAFCO and the other organizations who regulate dog food.
According to AAFCO rules, the guaranteed analysis must consist of the following:
There is a huge difference in moisture content between dry dog food and canned. Canned dog food averages 75% water, whereas dry dog food averages about 10%.
Therefore, in order to make a true dog food comparison of the nutrient levels, we need to convert both products to dry matter.
The formula is quite simple, really ... Grab your calculators and follow along with our example.
Divided by Percentage of Dry Matter
Multiplied by 100
Assuming a can of dog food contains:
At first glance, 9% protein looks on the very low side compared to dry dog food. Now watch this number after we convert it.
1. Calculate the dry matter of the canned food by deducting the moisture
2. Now, using this dry matter figure of 19%, apply the formula to each of
Protein: 9 divided by 19 x 100 = 47.4%
Notice the protein percentage now. You will find in many cases, canned dog food values tend to exceed that of dry dog food.
If you're weighing up the pros and cons of Canned Dog Food Versus Dry Dog Food, we also recommend you read our eye-opening articles on: