Tasty and filling, stomach problems

I find this very tasty breakfast porridge, by Mandelstückcken etc. he is not as dry and tastes more interesting than a "just" Flockenbrei. I mix him in addition, for example, with fruit and milk (normal or soy) possibly some agave syrup. He fills me a few hours without complaining.
At the moment I have more problems with the stomach, these do not occur after eating this meal.