Vinegar is not only a food preservative, it also has many medicinal uses to treat several conditions. The slow fermentation process of vinegar leave it in rich bio-active components, that give it an antimicrobial, antioxidant and many other beneficial properties.
Some people take one or two teaspoons of vinegar a day, mixed in a cup of water, in the morning or before meals, and they report many benefits from doing so.
Vinegar seems to be anti-glycemic and has an agreeable effect on blood sugar levels. One hypothesis is that vinegar may inactivate some of the digestive enzymes that break down carbohydrates into sugar
causing to slow the conversion of complex carbohydrate into sugar from a meal into your bloodstream, and thus preventing sugar levels spikes. Many studies and researches support the use of vinegar as a diabetic treatment.