Sebastian...
I feed Romeo Iams Large Breed 1-year +. Also when I first got him I bought a raised feeding stand to combat the bloat issue. I have never had any problems with it so far. I also do not exercise him right after he eats, but have heard that you should at least give them 30 minutes before you do anything (exercise/playing). The only thing that happens with romeo is that if he drinks too much water after playing, sometimes he vomits a little water up. But that is pretty normal for most any living creature. When hiking or doing anything that is really tiring, he doesn't eat much. Oh, how many cups of food do you give your DDB per meal? Romeo gets 3-4 cups twice a day, that seems to be a good amount as far as keeping him fit and trim!! -Travis