Human Microbes

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Do not let Howie Mandel know this but microbes are good for you. The human body hosts more than ten thousand different kinds of microbes. Most of them help the immune system in fighting other microbes and diseases.

Lactic acid bacteria are used to make yogurt, cheese, sour cream, buttermilk and other fermented milk products.
Vinegars are produced by bacterial acetic acid fermentation.
Yeast is used in the manufacture of beer and wine and for the leavening of breads. It is also involved in fermentations to convert corn and other vegetable carbohydrates into ethanol to make beer, wine, or gasohol; but bacteria are the agents of most other food fermentations.
Other fermented foods include soy sauce, sauerkraut, dill pickles, olives, salami, cocoa and black teas. (via-life-materials.com)