Abstract: The present invention describes new compositions of matter comprising (1) roasted coffee beans in either whole bean form or in ground form to which a formulation containing resveratrol and glycerin and/or specified additional additives have been added, (2) liquid beverages extracted at a pressure of less than 2000 bar from said roasted coffee beans or grounds to which a formulation containing resveratrol and glycerin and/or specified additional additives have been added; and (3) so-called “instant coffee” or “soluble coffee” prepared from roasted coffee beans to which a formulation containing resveratrol and glycerin and/or specified additional additives have been added, but in which a pulverized coffee component is specifically excluded. The formulation including glycerin leads to increased solubility and bioavailability of resveratrol.