Apple cider vinegar is a type of vinegar made by the fermentation of apple cider. During this process, sugar in the apple cider is broken down by bacteria and yeast into alcohol and then into vinegar. Apple cider vinegar contains acetic acid
(like other types of vinegar) and some lactic, citric and malic acids. A 2006 study found that rats fed acetic acid (the main ingredient in vinegar) had significantly lower total cholesterol
levels. However Larger, human trials are needed to see if the same results occur in humans.
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