Balsamic vinegar is a very dark, concentrated, and intensely flavoured vinegar originating in Italy, made wholly or partially from grape must. Grape must is freshly crushed grape juice with all the skins, seeds and stems.
Balsamic vinegar is a safe food additive that contains no fat and very little natural sugar. It's been proven effective to lower cholesterol and stabilize blood pressure. Some research suggests it can also work as an appetite suppressant, and it contains strains of probiotic bacteria.