The spa water stimulates gallbladder, pancreatic, liver and gastric secretions.
It produces a direct effect on the mucous membrane of the digestive apparatus by activating the acid secretions of the stomach, hence its contra-indication in cases of gastric ulcer.
It also produces a laxative effect by stimulating intestinal activity.
This is because the mineral salts in Mondorf spring water are difficult to absorb and therefore provoke water resorbtion and activate intestinal motility.
The mineral composition of Mondorf spa water regulates the concentration of minerals in the blood.