Home remedies for low immunity depend on the cause.  One of the best solutions to boost the immune system is a good diet that consists of: fruits, vegetables, whole grains, nuts, beans, foods high in carotenes such as squash, tomatoes, yams, carrots, protein, and foods low in fats and refined sugars.

One of the best remedies that stimulate the production of immune cells is green tea.  It is recommended to drink a cup of green tea two or three times daily.

Also, you can drink ginseng tea.  Ginseng is not only known to prevent illness, but also for the treatment of illness related to immunity.

Another popular remedy is radish, lemon and orange juice.  Cut two radishes in quarters.  Blend with ¼ cup water, juice of a lemon, and the juice of two oranges.  Drink juice after blended.