Does vinegar have any positive or negative affects on the body?
--Lori (last name withheld)
Although vinegar is a great low-calorie (roughly 14 calories per tablespoon) flavoring agent, it doesn't offer significant amounts of any nutrient.
Some fasts and detox plans claim that downing a tablespoon of apple cider vinegar before each meal helps reduce cravings and speed up fat loss.
I have absolutely no idea how they came to such a conclusion, though, given that there is nothing in the scientific literature demonstrating that vinegar has specific fat-loss properties.
There has been some preliminary research on vinegar's effect on blood sugar levels of diabetics, but nothing that would warrant the suggestion of making vinegar a daily staple.
There is no reason to avoid it, either -- there are no harmful effects from consuming it in moderate amounts (i.e.: a tablespoon in salad dressing).
That said, going overboard and drinking multiple tablespoons in an attempt to speed up the metabolism is not only futile -- it can also cause tooth enamel damage.