Malnutrition is a leading cause of immunodeficiency worldwide; in particular, vitamin A and protein malnutrition
seem to wreak devastating effects on various types of white blood cells. This research paper undertakes a primarily qualitative
approach, curating and summarizing the most cited published findings on the effects of vitamin A and protein deprivation on
leukocytes, neutrophils, eosinophils, lymphocytes, monocytes, macrophages, B cells, and T cells.