A nutritional composition, the consumption of which provides a method for creating and prolonging muscle pumps, providing a transducer effect for nitric oxide, increasing nutrient delivery and promoting increased vascular response in individuals. The nutritional composition of the present invention comprises citrulline, aspartic acid and. creatine. In addition, the nutritional composition may also comprise L-arginine, and maritime pine (bark) extract. The nutritional composition of the present invention may also further comprise L-leucine and L-valine.