Several theories have been developed to explain consumer attitudes, intentions and behaviors towards health (see Weinstein, 1993, for a review). While these theories take different approaches to explain and predict health-related outcomes, they all share a common premise: that consumer health intentions and behaviors are driven by a cognitive assessment of the costs and benefits of engaging in these behaviors and by a desire to avoid negative health effects (Keller & Lehmannn, 2008). This section will discuss two important aspects of consumer health behavior: understanding health information and making healthful decisions.