Wheatgrass juice is 70% chlorophyll, a proteinous compound that, through the process of photosynthesis, converts the suns light energy into chemical energy.  Chlorophyll is often referred to as "the blood of plant life" and closely resembles the molecules of human red blood cells.

A lot of research has been done on the beneficial applications of chlorophyll. Dr. Birscher, a research scientist, states that chlorophyll, "increases the function of the heart, affects the vascular system, the intestines, the uterus and the lungs." According to Dr. Birscher, nature uses chlorophyll as a body cleanser, rebuilder, and neutralizer of toxins.

Chlorophyll is similar in molecular structure to hemoglobin, the protein that carries oxygen to all the cells in the body. Dr Yoshihide Hagiwara, a Japanese scientist, suggests that chlorophyll can be absorbed directly into the blood stream. Hagiwara reasons that the human body can then transform chlorophyll into hemoglobin increasing the red blood cell count and the blood's capacity to deliver oxygen and other nutrients to the cell of the body. Current research confirms Hagiwara's reasoning. Wheatgrass juice is high in oxygen like all other green plant juices. The brain and all other body tissues function at an optimal level in a highly oxygenated environment.