[Mike Sagman]

Thanks for your question. There are at least 2 ways to compute the calories weighted nutrient content of any food. I like to use what’s called the “modified Atwater method”. You can read more by clicking the following link to the AAFCO website.

http://petfood.aafco.org/Calorie-Content

By the way, I’m planning to add an easy-to-understand article about how to perform those calculations for our readers here on DFA — sometime in the not too distant feature.

Hope this helps.