Interesting. I've never heard that suggested as a reason for digestive upset. What I hear is speculation as to the dog having eaten some kind of garbage it shouldn't have.
I have had a bad bag of food - noticeable when opened that it was grayish. So that's once in over 50 years I've been on my own and buying for for my own dogs and rescue fosters, but it does't hurt to stay current on dog food recalls.
The primary thing that causes diarrhea in my dogs is stress - change of location or routine, new dog or human in household. I had a couple go rounds with giardia over the years (it's pretty much endemic here in Colorado, most dogs carry it, and stress gives it the upper hand), and one whose digestion just became a problem as she aged. She needed a special diet.
I have had a bad bag of food - noticeable when opened that it was grayish. So that's once in over 50 years I've been on my own and buying for for my own dogs and rescue fosters, but it does't hurt to stay current on dog food recalls.
The primary thing that causes diarrhea in my dogs is stress - change of location or routine, new dog or human in household. I had a couple go rounds with giardia over the years (it's pretty much endemic here in Colorado, most dogs carry it, and stress gives it the upper hand), and one whose digestion just became a problem as she aged. She needed a special diet.