Foot odor is caused by bacteria on your feet eating your skin and partying in your sweat. Many people suffer from a condition called hyperhydrosis, which is excessive sweating. For these poor souls foot odor is a common problem. Bacteria need six things to survive. Food; the keratin in your skin. Acidity; a relatively nuetral environment, acidic environments kill them. Temperature; your bodies temperature is perfect. Time; the more time the more bacteria. Oxygen; although some bacteria are anaerobic most are not. Moisture; your sweat. So controlling these variables will help you to control your foot odor. For more information on how to get rid of foot odor, read the full article here. And as always please ask any questions you might have. I would be happy to answer them.