This study investigates the influence of information sources on food-risk-related perception and prevention behaviors. Data were obtained from the 2016 Taiwan Communication Survey (N = 2,098). The results indicate that communication inequality exists. People who have higher education and higher income are more likely to access both the television and Internet. Participants' media use patterns may not reflect their sources of information on food risks. Compared with those using television as their information source, people who use the Internet as their source of information on food risks exhibit more prevention behaviors. People who use both the television and Internet as information sources are likely to perceive the severity of food risks and exhibit more prevention behaviors. The results indicate that to some extent, communication inequality causes health inequality.