Originally Posted by pmum
One would think so, but... yet at the same time, rotating too often can
cause intestine upset. Not good...
I actually think it's people who don't rotate their dog's food often enough
that run into this issue. If a dog is eating the exact same food for 2 years and then it's swapped on them, they will probably have digestive upsets as their body adjusts, because they've spent the last two years only eating one thing. Imagine if you ate Total cereal and nothing else for a year and then went out for Mexican food...
On the other hand, those dogs whose foods are rotated regularly (every couple months or so) usually have far fewer digestive upsets when their foods are swapped, because their body is acclimated to variety.
I even know people who feed 2-3 different foods at the same time. Food 1 for breakfast, food 2 for dinner, food 3 for breakfast the next day, 1 for dinner, etc.