These changes in milk composition represent {HEAD ~ improvements} in {TAIL ~ nutritional quality} consistent with contemporary dietary recommendations 
in
These changes in milk composition represent { HEAD ~ improvements } in { TAIL ~ nutritional quality } consistent with contemporary dietary recommendations
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH