Since the activated yeast cells contained in these yeast compositions have been cultured to endure acidic conditions , {HEAD ~ the compositions} are stable in the stomach and can pass on to {TAIL ~ the intestines} 
pass on to
Since the activated yeast cells contained in these yeast compositions have been cultured to endure acidic conditions , { HEAD ~ the compositions } are stable in the stomach and can pass on to { TAIL ~ the intestines }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL