Figure 3.

Administration of daidzin,* an isoflavone, decreased both alcohol and food consumption among study rats. The decreases in alcohol intake, however, were greater than the decreases in food consumption, and these differences increased in relation to dose. The data points show an average of seven rats. Each daidzin dose was administered three times, saline was administered five times, and baseline was defined as the session just preceding the saline session.

*Daidzin is derived from a plant used by traditional Chinese herbalists to treat excessive drinking (Heyman et al. 1996).