Lewis Wilson was born on January 28, 1920 in New York City, New York, USA as Lewis Gilbert Wilson. He was an actor, known for Batman (1943), Craig Kennedy, Criminologist (1952) and Wild Women (1951). He was married to Dana Broccoli. He died on August 9, 2000 in San Francisco, California, USA.
During fermentation a lot of the sugar is converted to acid. But there is still more sugar than regular vinegar has. So real aged balsamic vinegar has more calories from the grape sugars.
1 In order to bear the name balsamic, the vinegar must be made from the juices of the Trebbiano and Lambrusco grapes. The juice is blended and boiled over a fire. It is then poured into barrels of oak, chestnut, cherry, mulberry, and ash.  The juice is allowed to age, ferment, and condense for five years.