| Undigested lactose fermented by bacteria creates lactic acid in the stool and other short chain fatty acids such as butyric acid. |
| It does so by drawing on its store of glucose, which it converts to lactic acid. |
| Your muscles become cramped from lactic acid and from the number of hours you're standing upright. |
| This event is an all-out lactic acid fiesta, and it is common for some competitors to require medical aid at the end of their run. |
| The lungs also contribute to this process by eliminating carbon dioxide which is the waste byproduct of glucose and lactic acid metabolism. |
| It may also increase the body's capacity to reduce the build-up of lactic acid. |
