Chlorophyll

Chlorophyll is a metalloporphyrin, which is in the same grouping as hemoglobin.  Red blood cells contain iron at their centre, where chlorophyll contains magnesium.  Because of this the liver is able to convert chlorophyll to hemoglobin easier than any other food material, thereby increasing the oxygen carrying capacity of the blood.  Chlorophyll also increases the livers production of glycogen which improves insulin regulation.