Beta alanine is a non essential amino acid thus it occurs naturally in the body and is found in dietary sources such as meat and fish its role is to promote high intramuscular concentrations of carnosine a small molecule composed of the amino acidshistidineandalanine carnosine acts as a buffering agent helping maintain an optimal muscle ph range thus delaying the onset of muscular failure carnosine is a bond of beta alanine and histidine which is highly concentrated in muscle and brain ti