Many people have issues with bowels and this can be a result of dairy consumption. Lactose is a major compound in dairy that gives many people issues, including brief diarrhea. The problem with lactose involves an enzyme, lactase that breaks down lactose when consumed. Not everyone has sufficient amounts of this enzyme, which means that diarrhea can occur following the consumption of anything dairy. You may know this as being lactose intolerant and it can take effect at any time during your life. If you have been having diarrhea and flatulence, consider avoiding dairy at all costs so you can eliminate all possibilities.