Beta- Hydroxybutyrate ( BHB) BHB is a ketone that the body produces when it's in a state of ketosis. BHB can also be taken as a supplement to help the body enter ketosis more snappily. A study published in the Journal of Nutrition and Metabolism set up that taking BHB supplements can increase blood ketone situations and help the body enter ketosis more snappily. BHB may also have other implicit benefits, similar as reducing inflammation and perfecting cognitive function.