Poor gut flora is believed to trigger obesity. In the same way, healthy gut flora could reduce the risk. This has shown to be the case in tests on rats. Daily intake of a lactic acid bacteria, which has been given the name Lactobacillus plantarum HEAL19, appears to be able to prevent obesity and reduce the body's low-level inflammation. "Rats who were given this specific lactic acid bacterium from their time in the uterus up to adult age put on significantly less weight than other rats. Both groups ate the same amount of high-energy food", explains Caroline Karlsson, a researcher...