Mean and variance measures of health information about cholesterol and saturated fat are included in a demand system for fats and oils. A Bayesian model of health risk belief and consumer awareness surveys are the basis for computing these measures. The empirical demand model shows that health information has resulted in significant increases in consumption for corn, cottonseed, and soybean oils and decreased consumption for butter and lard. The predicted demand effects based on the Bayesian information model are more reasonable than predictions from using either a time trend or a simple cumulative cholesterol information index.