They are if they are given at a placebo dose. The same is true for drugs. Using a meta-analysis for science is also a waste of research money. Usually you take a number of poorly designed trials (especially those using omega-3 fatty acids) using a placebo-like dose and then grind them up like sausages. Bad-quality meat makes bad-quality sausage. The same is true in clinical research.
Dr. Sears Comments: