5 Foods That Boost Immunity

Turmeric

A key ingredient in many curries, this bright-yellow, bitter spice has been used for years as an anti-inflammatory in treating both osteoarthritis and rheumatoid arthritis. A recent study published in the Journal of Ethnopharmacology demonstrates that high concentrations of curcumin, which gives turmeric its distinctive color, helps to reduce inflammation and fever.

Green tea

Green tea really has high levels of epigallocatechin gallate, or EGCG, another powerful antioxidant. The fermentation process black tea goes through destroys a lot of the EGCG. Green tea, on the other hand, is steamed and not fermented, preserving EGCG. If that wasn't enough, it's also a good source of the amino acid L-theanine. L-theanine aids in the production of germ-fighting compounds in your T-cells.