Certain compounds found in ginger tea could support immune health6 by altering specific pathways in the body that drive inflammation. Ginger might also have antimicrobial properties7, which could block the growth of bacteria, fungi, and viruses. According to Sauceda, this may be thanks to the presence of several specific compounds in ginger, such as gingerol.
Although there’s not much research on humans available, preclinical studies have turned up some promising results. For example, a recent study in mice found that certain compounds extracted from ginger root could improve the composition of the gut microbiome, resulting in enhanced immune function8.
A 2013 test-tube study also found that fresh ginger might have antiviral effects9 against respiratory syncytial virus, a type of viral infection that causes cold-like symptoms. Still, more studies in humans on the effects of ginger tea on immune function are needed.