Now, these cells, just like any other cells in nature, actually need ATP molecules to survive. And these cells use lactic acid fermentation, and when there is a build up of lactose inside our colon, these cells will use the lactose, the bacterial cells will use the lactose and break that lactose down to form ATP molecules in the process that will form lactate. So lactic acid, and if there's a build up of lactic acid lactate in our colon, that will cause the water to move out of the cell and into that lumen of the colon and that will lead to water restores. So diarrhea, in addition, these cells, when they break down the lactose, they also produce things like hydrogen gas and methane gas. And that will lead to build up in pressure, it will cause swelling and that will lead to flatulence as well as gastrointestinal discomfort. Now, these digestive problems can be a result of the combination of the gas build up as well as a diarrhea and it will basically cause the inability of our system, our GI tract, to basically absorb things like proteins and fats.