Immune Support

Tea polyphenols modulate immune function through multiple pathways: EGC and L-theanine prime gamma-delta T cells for faster immune response, EGCG supports natural killer cell activity, and tea polysaccharides enhance macrophage function. A Harvard study found that tea drinkers' immune cells responded five times faster to germs than coffee drinkers'. Regular tea consumption is associated with reduced incidence of upper respiratory infections. The antimicrobial properties of tea catechins also provide direct pathogen defense.