Macrophages are the largest white blood cells and have two primary functions. Their main function is to analyse and ingest pathogens. It is their other function that seems extraordinary. Macrophages become specialised in the system of the tissue that they patrol. They 'read' the glycoprotein cell coating and check if the cells are healthy, infected, damaged, or cancerous and can enlist the help of other cells to solve system problems. They are long lived and often will clutch large foreign objects for months while endeavouring to digest them.When macrophage action is required, glyconutrients increase the rate, speed, magnitude, and precision of macrophage function, increasing their ability to identify and destroy tumour cells, bacteria, viruses, parasites, and fungi, including those that cause HIV, measles, influenza and the common cold.