This expulsion occurs at an energy cost with no energy gained from xylitol metabolism. Thus, xylitol inhibits S. mutans growth essentially by starving the bacteria. Xylitol can inhibit the growth of harmful oral bacteria such as S. mutans, but its benefits do not stop in the oral cavity. read more
Bacteria do not evolve faster than we can adapt to them. Firstly, the word adapt is incorrectly used here - we do not adapt to bacteria, our immune system evolves right along with them and it is pretty much a tie. read more
One study found that the amount of xylitol consumed determined the degree of reduction in dental decay although the benefits of xylitol top out after 10 g per day. Any less than 5 g of xylitol per day is no more effective than sorbitol. read more