Nancy linked this site on another thread this afternoon, and it makes the same statement
The Dog Food Project - Myths about Dog Nutrition,
"According to veterinary literature, the most common causes for pancreatitis are
a high fat, low protein diet"
I thought I understood it from Cathy's explanation of RX foods, but neither article even mentions an RX diet. And of course, no sources for the veterinary literature are cited.
I don't know why this one point is bothering me, maybe because it's opposite to what I always thought.
Right now I'm feeding a grain-inclusive food that I like, that all my pups like and that they're all doing very well on (it's 26% protein, 14% fat and 391 calories). I've rotated foods in the past but I've really liked this food and I don't plan on making any changes to their diet - but I still like to know as much as I can. Like most everyone here, I just want my little ones to be healthy and happy.

Jackson's little adventure shook me up!
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He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion. -- Author Unknown