A beverage can include D ethyl 3-hydroxybutyrate, D 1,3-
butanediol, D
Beta hydroxybutyrate salts, D
Beta hydroxybutyrate / D 1,3-
butanediol monoester, D ethyl hydroxybutyrate, hydroxybutyrate, and / or D
hydroxybutyric acid of at least 0.5 percent by volume. The percentage of D ethyl 3-hydroxybutyrate, D 1,3-
butanediol, D
Beta hydroxybutyrate salts, D Beta hydroxybutyrate / D 1,3-butanediol monoester, D ethyl hydroxybutyrate, hydroxybutyrate, and D
hydroxybutyric acid can be between 5 and 19 percent, or can be higher than 19 percent. The beverage can be improved by the incorporation of
flavor from hops and / or from other ingredients.