October 28/St. Louis/Daily Mail -- Scientists from Washington University School of Medicine wanted to look at what impact, if any, live bacteria in popular yoghurts have on digestion. They performed studies on mice as well as identical female twins using a yogurt that had five strains of live bacteria.
The team found eating the yoghurt twice a day for seven weeks did not alter the mix of microbes in the intestines of the women or the mice. However, when they took a closer look at the mice, they found there were significant changes in some of the bacterial enzymes involved in metabolizing carbohydrates.