MultiGest? Enzymes combines plant-derived enzymes with lactase assisting in the digestion of lactose and bromelains aiding in the digestion of proteins. Gentian has been traditionally used in western herbal medicine (WHM) to stimulate gastric secretions, relieve loss of appetite and promote healthy digestive system function. Gentian and fennel have been traditionally used in WHM to relieve digestive discomfort and the symptoms of indigestion such as bloating. Fennel has also been traditionally used in WHM to relieve flatulence.