The inorganic constituents of adult Parascaris quorum worms revealed the presence of sodium, potassium, calcium, phosphorus, iron, magnesium, zinc, lead, chloride, cobalt, manganese, copper, lithium, nickel phenylalanine, tyrosine, alanine, arginine, aspartic acid, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, methionine, serine, threonine, tryptophan and valine. Alanine was in maximum quantity (19.3 +/g) whereas aspartic acid was minimum (0.6 pM Ig). Besides, lactic acid and ammonia were also present. Enzymatic components included creatinine phosphokinase, lactic dehydrogenase and glucose-6-phosphodehydrogenase.