Abstract: ADMA is determined in a physiological sample by first removing interfering components: proteins by precipitation; and amines and citrulline, by means of a cation exchange column, followed by enzymatic hydrolysis of the ADMA to citrulline with DDAH. The citrulline is then determined spectrophotometrically.

Abstract: Health bars are provided having high dosages of at least one of the amino acids L-arginine and L-lysine in conjunction with fruit solids and paste, protein and carbohydrates. A number of different fruit sources may be used, grapes finding particular use, and soy being a useful source of proteins. The bars are made by preparing a syrup at an elevated temperature, adding a fruit paste and cooling, followed by the addition of minor ingredients and mixing, the amino acids and a portion of the protein and mixing, followed by the remaining ingredients and formation as a bar.