Nutraceutical gum or functional food compositions comprise Ashwagandha (Withania somnifera) and L-theanine in a sublingual formulation. Methods of making suitable sublingual formulations are described. Also provided is a method for reduction of stress and/or enhancement of energy and mental clarity, comprising administering to an individual in need thereof an effective amount of a nutritional composition comprising Ashwagandha herb and L-theanine, and a nutraceutically acceptable carrier, wherein the nutritional composition is administered sublingually.