Thank you so much for your comment. I have never heard of casein. I just thought it was cow's milk overall constipating my daughter. Would you know if I give her protein power in almond milk is that equivalent to protein content found in cow's milk? If you do know of any brands of protein powder that are natural than chemically combined, I will go to an organic store to find out more as well. Thank you.
The issue your daughter may be dealing with might be an intolerance to the protein - casein - in dairy. If that's the problem, you'll have to make sure that anything she consumes does not contain casein, sodium caseinate or any other derivative of casein which is found in ALL forms of dairy from any animal.
You might consider adding some protein powder to the almond milk. And make sure the almond milk doesn't contain casein - some brands do. I believe it's added to make the consistency a bit thicker.