Abstract: Described is a novel composition of matter which is a natural red dyestuff composed of the ingredients:(i) a betalaine (red beet dye);(ii) Ascorbic acid or derivative or salt thereof (e.g. sodium ascorbate or isoascorbic acid [D-erythro-hex-2-enonic acid gamma lactone]);(iii) A phosphate (such as sodium hexametaphosphate and/or tetrasodiumphosphate) and, optionally,(iv) Ethylenediaminetetraacetic acid or a salt thereof.In addition, the foregoing composition may contain caramel color.Also described are processes of preparing such compositions and processes of adding same to foodstuffs, chewing gums and medicinal products.