* [[Maitake]] contain polysaccharide fibers called beta-glucans that stimulate the production of neutrophils, T-cells, and macrophages (white blood cells). These cells help our immune system to combat illnesses in a rapid and efficient manner, remove cellular debris, and hasten our recovery from tissue damage
* [[Arabinogalactan]] is found in larch trees, is a type of fiber that has been shown in German research to boost the immune system.
* [[Kefir]] : studies demonstrate its immune-boosting and anti-viral activity. One study found that kefir and its constituents have immune system-regulating activity and the ability to enhance the immune system’s capacity to fight off viruses.
== Warnings ==