First, the manufacturer exposes crushed apples to yeast, which ferments the sugars and turns them into alcohol. Next, they add bacteria to further ferment the alcohol, turning it into acetic acid — the main active compound in vinegar.
Organic, unfiltered apple cider vinegar also contains a substance called mother, which consists of strands of proteins, enzymes, and friendly bacteria that give the product a murky appearance.
Some people believe that the mother is responsible for most of its health benefits, although there are currently no studies to support this.
While apple cider vinegar does not contain many vitamins or minerals, it offers a small amount of potassium. Good quality brands also contain some amino acids and antioxidants.
Apple cider vinegar is made by fermenting the sugar from apples. This turns them into acetic acid, which is a main active ingredient in vinegar and may be responsible for its health benefits.