Effect of frequent consumption of a <i>Lactobacillus casei</i>‐containing milk drink in <i>Helicobacter pylori</i>‐colonized subjects

Viable L. casei are required for H. pylori growth inhibition. This does not result from changes in lactic acid concentration. In addition, a slight, but non-significant, trend towards a suppressive effect of L. casei on H. pylori in vivo may exist.