A supplement formulation is disclosed that includes a Nitrate or a Nitrite of an Amino Acid Compound selected from the group consisting of Arginine, Agmatine, Beta Alanine, Citrulline, Creatine, Glutamine, L-Histidine, Isoleucine, Leucine, Norvaline, Ornithine, Valine, Aspartic Acid, Cysteine, Glycine, Lysine, Methionine, Proline, Tyrosine, and Phenylalanine, wherein the supplement formulation is formulated to deliver an effective amount of the Nitrate or Nitrite of the Amino Acid Compound to prevent the development of nitrate tolerances, to increase bioabsorption of amino acids, to increase the vasodilative characteristics of amino acids, or to increase athletic performance in a human or animal. The supplement formulation may be in a dosage form selected from the group consisting of a capsule, a cachet, a pill, a tablet, a powder, a granule, a pellet, a bead, a particle, a troche, a lozenge, a gel, a liquid, a suspension, a solution, an elixir, and a syrup.
