Alexander wants to know if he can do anything to reduce his risk of developing bipolar disorder, with which several family members have already been diagnosed. He asks you if taking omega-3 fatty acids could help. You advise him that
A. omega-3 fatty acids have not yet been tested in a controlled trial, so we don't know whether supplementation would have an effect.
B. prevalence rates for bipolar disorder are actually highest in countries where fish is an important diet staple, and lowest where fish is rarely consumed.
C. there is currently no plausible evidence that links omega-3 fatty acids to any effect on bipolar disorder, whether protective or harmful.
D. attempts to improve symptoms in patients with bipolar disorder with omega-3 supplements have only produced weak results.
Answer: D
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