Humans have been drinking vinegar for centuries as the practice dates as far back as 400 B.C. when apple cider vinegar began to be used as a home health remedy.  The recent resurgence of the use of apple cider vinegar as a health elixir has breathed new life into the practice and has helped position drinking vinegar as a niche to keep an eye on.  While it is still early, drinking vinegar is blossoming with new product launches from many influential functional drink companies.