I think in some situations we give dogs sensitive stomachs by feeding them the same food meal after meal, day after day and year after year. If we ate the exact same thing for every meal, we would probably have issues with something new as well.
But there are still some foods that are harder on my tummy than others, just like dogs.
Luckily, my dogs are healthy now and I can feed them a variety of types of food and brands with no issue or much transition. Dogs with medical conditions may not ever be able to do this, however. You just have to see what works best for your dogs.
