I am pitta too. I never heard about the apples, but I am not surprised, I would think it is the sourness. It is the same when people do The Master Cleanse it is not that good for pitta's too much lemon juice. I am glad to know about the apple cider vinegar. Right now I have been putting 1 tbs on my salad.
The pores on my face did get smaller from liverflushing.