information on anhydrous betaine ingredients appearance: white to light brownish color crystalline assay: 98.0%min loss on drying: 2.0%max residue on ignition: 0.2%max heavy metal (as pb): 5ppmmax assay: 99.0-100.5% 1 betaine hydrochloride as a supplemental source of hydrochloric acid for people who have a deficiency of stomach acid production (hypochlorhydria). 2 betaine hydrochloride as a supplement useful for atherosclerotic. 3 betaine hydrochloride as a food preservative 4 betaine hydrochloride in beast pharmaceutical for coccus disease