Two basic foods, spinach and maize, have different capacities to absorb trace metals from polluted soil. According to our research, there are significant variations in the trace metal contents of different crops, with spinach often displaying greater levels of metal accumulation than maize. There are a number of reasons for this variation in metal absorption. Because of its wide leaf shape, spinach has a lot of surface area on which to absorb metal through the roots and leaves. Compared to spinach, maize has a distinct root architecture and a smaller leaf surface area, which may restrict its ability to absorb metals. Variations in the mechanics of metal uptake are also quite important. Spinach's tissues may accumulate more metals because it contains higher affinity transporters or more effective metal uptake systems .