The cost of fish is not in question, although a word about the cost of fish oil supplements would not have been inappropriate. Although we think readers will come away with the correct bottom line message on this study, we’re going to rate this criterion unsatisfactory, for two reasons: The harms of eating fish are not in question, although there is some concern that certain species high in mercury can be harmful for pregnant women and children. This is where the HealthDay coverage shined. In addition to cautioning that the study couldn’t prove that omega-3 fatty acids prevent mental decline, the story had a nice discussion of the limitations that apply to this study and other observational studies: The story also mentioned that a clinical trial of high and low omega-3 intake would help prove whether there’s a beneficial effect. There was no disease mongering. The story quotes an independent expert, and there were no conflicts that should have been identified. There was no discussion of other habits or behaviors, such as exercise and mental stimulation, that are associated with maintenance of cognitive function with age. The story also did not mention other potential sources of omega-3 fatty acids, as CNN did. The availability of fish isn’t in question. The story nods to previous research suggesting that fish consumption might have benefits for the aging brain. The story was not based on a press release.
Omega-3 Fatty Acids May Protect the Aging Brain