Recall that it is used by most internal organs for nutrition, participates in the work of the entire body and controls the growth of nerve cells, as well as erythrocytes.
Khumbula ukuthi isetshenziswa kakhulu izibilini amandla, khona uhlanganyela emsebenzini wonke umzimba futhi ilawula ukukhula ezinzwa kanye amangqamuzana abomvu egazi.