(a) said ketone body material

(b) propylene glycol;

(c) aqueous ethanol;

(d) water in addition to that contributed by said aqueous ethanol, hereinafter “additional water”;

(e) natural or synthetic flavor, comprising at least one flavor oil, at least 90% of the flavor oils being orange flavor oils, grape flavor oils, or a mixture thereof;

(f) high potency sweetener; and

(g) bitter mask agent;

wherein said ketone body material is selected from at least one entity of the group consisting of an alkali metal salt of a ketone body compound, ketone body esters, ketone body amides, and mixtures thereof,

said ketone body compounds are selected from the group consisting of 3-hydroxybutyric acid, and acetoacetic acid;

said ketone body esters are selected from the group consisting of (i) esters between the hydroxyl group of a first 3-hydroxybutyric acid and an acid group of a second ketone body compound, which second ketone body compound is selected from any of said ketone body compounds, (ii) esters between a ketone body compound and a ketone body precursor, (iii) esters between a ketone body compound and glycerin, and (iv) mixtures thereof;

said ketone body amides are selected from the group consisting of amides formed between said ketone body compounds and a physiologically acceptable amine, and wherein said bitter mask agent is is the compound 3-(1-((3,5-Dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxbenzyl)imidazolidine-2,4-dione of Formula

or a salt or N-oxide thereof.