Coffee is good for your heart! No, caffeine is bad for you! Eggs are fine, though! No, eating eggs is worse than smoking! ...Are you exhausted by the daily assault of conflicting health and nutrition information in the media? Skeptical about every new claim? You should be. As one critic puts it, health journalism is now based on "survival of the wrongest," and there are good reasons why consumers should be wary of what they read.