Fox News | Study questions benefits of fish oil supplements Fox News If your daily routine involves taking a fish oil pill for your brain health, you may want to rethink that. In the largest and longest in duration study of its kind, researchers found that taking omega-3 supplements did not slow cognitive decline, The ... Debunked: Fish oil supplements don't prevent mental decline Omega 3 is still good for the brain. But 'fish oil supplements just don't cut it.' Stop Taking Fish Oil Pills |