L-Histidine 500 mg - 60 Capsules

L-Histidine L-Histidine from Douglas Labs supplies 500 mg of this amino acid in each capsule.  Amino acids provide the body with the nitrogen that is essential for growth and maintenance of all tissues and structures*. Proteins and amino acids also serve as a source of energy, providing about 4 calories per gram. Aside from these general functions, individual amino acids also have specific functions in many aspects of human physiology and biochemistry*. Amino acids serve as precursors for many nitrogenous substances. These include heme, purines, pyrimidines, hormones, and neuro-transmitters, including biologically active peptides.