My mother in-law has become very bitter and angry lately and it seems to coincide with an increase in her consumption of Sprite and orange juice. It;s all she drinks lately. And my father in-law refuses to make coffee anymore, he will only make hot chocolate and for breakfast it's french toast with no protein at all. He refuses to cook bacon or sauce or eggs to go with it. I seem to recall someone telling e once that as the dementia advances they get to a point where they only want sweets.