Of course. Huang Feihong Hu Sansheng fermented mushroom yeast grape drink claims that it can improve immunity, because it contains some ingredients with immunomodulatory effect. This drink contains many kinds of mushrooms, such as Ganoderma lucidum, Tremella fuciformis and Lentinus edodes. These mushrooms are rich in bioactive substances, such as polysaccharides, peptides and secondary metabolites, which have antioxidant, anti-inflammatory and immunomodulatory effects, and are helpful to enhance the immune system function and improve the body's resistance.