Arugula is also a good source of vitamin A, which is important for maintaining good vision, cell growth and immune function, with each serving providing 475 international units of vitamin A, or 10 percent of the recommended daily amount.
Neutrophils are white blood cells that serve as important phagocytes, or garbage collectors. There are about 100 billion of these cells produced every day in the bone marrow and they account for about 70% of the white blood cells in circulation in your body.
One type of white blood cell is the neutrophil. These cells are made in bone marrow and travel in the blood. They sense infections, move toward the germs, and kill them. It is called a low white blood cell count, or neutropenia, when a person has too few neutrophils.