Balsamic vinegar contains polyphenols, antioxidants that can protect the body from heart disease and cancer. The grapes that are used to make balsamic vinegar also contain antioxidants that fight against cell damage, improve the body's immune system and make blood platelets more flexible, thus preventing heart or circulation problems.
The digestive system can benefit greatly from balsamic vinegar. The vinegar boosts the activity of pepsin, an enzyme that breaks protein down into smaller amino acids that can be more easily absorbed by the body. Pepsin helps to improve the body's metabolism as well. Balsamic vinegar can also improve insulin sensitivity for diabetics, allowing for an easier regulation of blood sugar and reducing unpleasant side effects from diabetes
Balsamic vinegar also works to suppress the body's appetite and increase the amount of time it takes for the stomach to empty, which can contribute to weight loss by preventing overeating. According to Nutrition Data, balsamic vinegar is a source of calcium, iron, manganese and potassium, which improve the body's functioning and weight loss abilities.
Welton, Rose. Balsamic Vinegar Health Benefits. http://www.livestrong.com/article/87969-balsamic-vinegar-health-benefits.... Apr. 26, 2011.