Dog bloat -- the unexplained bloating and twisting of the stomach, that mainly occurs in large-chested breeds -- but usuallly happens when the dog eats too quickly, and drinks too much, gulping air, and possibly exercises too much after eating. Don't mention that the non-raised bowl adds to it as well right? WRONG!!
It's in the ingredients, and the way kibble tries to force the dog's digestive system to do something it wasn't intended to do.
The ingredients (I'll mention 2) in many kibble brands add to the problem of bloat - like the 1) dehydrated beet pulp - whose sole job in the digestion process is to swell and absorb liquid from the interstitial fluid in the small and large intestines. Kibble companies need this for two reasons: 1) To slow down the digestion rate, so the body can have more time to get valuable nutrients out of the kibble (the dog's natural digestive system works much, much faster than ours); and 2) Without this function, the undigested waste would be far too runny and soft, which would make it appear that the dog is getting sick (diarrhea) from this food, and people would discontinue purchasing. So it firms up the stool by dehydrating the animal. It also blocks up the animal from being able to evacuate through diarrhea if needed, like in the case of bloat.
The other ingredient (which isn't listed - because it's a component on many plants) is the large amount of saponins , which when shaken with water, cause a foaming property (like shaking a bottle of water with soap in it). It causes lots of tiny bubbles to be formed, and this fills the stomach with foam, which causes it to bloat. A secondary issue that the saponin adds to the bloat condition is that it naturally relaxes the gag-reflex -- which makes it difficult for the dog to vomit, even though he feels the gastric discomfort. Since the dog cannot vomit, and the dog cannot evacuate via diarrhea due to the slow-digesting, dehydrated intestines, the stomach has not alternative but to try to flex and twist (gastric torsion), and it can happen in the small intestine too (gastric volvulus).
In short - kibble is a recipe for disaster!