WIKIMEDIA COMMONS, FEUERRABE
The bacteria found in some fermented dairy products, such as yogurt, may alter gene expression in human gut microbes, and resultant tweaks to metabolic processes could be behind gastrointestinal benefits often observed in people consuming such probiotic products, according to a study published today (26 October) in Science Translational Medicine. The work was funded by several grants from the National Institutes of Health and from Danone Research, the scientific research arm of Groupe Danone, a Paris-based multinational food products corporation that specializes in dairy products.
Since the 1990s, clinical trials have shown that probiotic bacteria can aid digestion in humans, but the molecular mechanisms involved in conferring those health benefits have proved difficult to pin down. "Nobody really understands how probiotics affect human health," said ...