Millions of people use antacids daily. Some patients develop severe hypomagnesemia, which leads to muscle cramps, diabetes and even cardiovascular diseases. Anke Lameris PhD investigated the molecular mechanism responsible for the side effects of drugs such as omeprazole. On February 4, 2014, she successfully defended her thesis entitled "Divalent Digestion: Insight into Intestinal lontransport" at Radboud University in the Netherlands.