keto fiber supplement Ultra Keto Slim contains three organic ingredients; Green Tea Extracts, Forskolin, and Beta-hydroxybutyrate (BHB). BHB is what kick-starts and maintains ketosis. Note that ketosis is what forms the basis for the popular Ketogenic Diet. However, this doesn’t mean that Ultra keto Slim cannot be used by people that aren’t on the Keto Diet. In fact, one of the major reasons the product was developed is to help people achieve Ketosis even if they’re not on the often restrictive Keto Diet.