The leaves contain apart from the usual main nutritional ingredients (proteins, lipids, carbohydrates and inorganic matter) and secondary plant constituents (labdane diterpene, triterpenes, sterols, flavonoids, volatile oil constituents, pigments) a unique mixture of naturally sweet steviol glycosides .

Those sweet steviol glycosides include amongst others Rebaudioside A , Stevioside, Rebaudioside B, Rebaudioside C, Rebaudioside D, Rebaudioside E, Rebaudioside F,Dulcoside A, Steviolbioside , Rubusoside. 
 Molecular structure of steviol glucosides