Dear Johanna,

This is my second attmept to answer your question. There is no concern, but she may reduce the dosage to make it more comfortable for her. The magnesium oxides in Epsom salt undergo alteration in the intestines. The magnesium is released and relaxes the bowel and eliminates waste, whereas the oxygen combines with hydogen and turns into water, hence the watery stools.

Best wishes,
Andreas