“…Therefore, to resolve these problems, attention has been focused on food components. One food component that promotes SP release in the oral cavity and improves the swallowing reflex is capsaicin (the pungent component of Capsicum annuum) (Ebihara et al, 1993;Ebihara et al, 2005;Nakagawa et al, 1995), which is an agonist of the transient vanilloid type l (TRPV1) receptor potential (Caterina et al, 1997;Ebihara et al, 1993;Ebihara et al, 2005;Holzer, 2011;Szallasi and Blumberg, 1999;Tominaga and Caterina, 2004).…”