CD8A and breast cancer: Moreover, aged garlic extract and its product N‐α‐(1‐deoxy‐D‐fructos‐1‐yl)‐L‐arginine alleviated neuroinflammatory responses in BV‐2 microglia by regulating gene expression.32 Additionally, animal work indicated that protein compositions extracted from fresh garlic bulbs restrained tumor growth by elevating CD8+ T cell infiltration into the BC site.33 In keeping with these findings, our study indicated that garlic is an independent protective factor of BC, with an intake of ≥4 times/wk significantly decreasing the risk of BC (ORadj = 0.23, 95% CI = 0.15‐0.36).