SUNDAY, Aug. 31 (HealthDay News) -- Daily supplements of omega-3 polyunsaturated fatty acids -- the kind found in fish oil -- reduced deaths and hospitalizations of people with heart failure, an Italian study found.

But a cholesterol-lowering statin drug had no beneficial effect in a parallel heart failure trial.

TUESDAY, Aug. 5 (HealthDay News) -- Fish may be brain food after all -- not making you smarter, as your grandmother said, but by lowering the risk of cognitive decline and stroke as you get older, according to a new study.

The benefit appears to come from fish rich in omega-3 fatty acids. In fact, eating fish such as tuna three times a week can reduce the risk of dementia or stroke by 26 percent, the study found.

FRIDAY, July 11 (HealthDay News) -- The wildly popular farm-raised fish known as tilapia may actually harm your heart, thanks to low levels of healthy omega-3 fatty acids and high levels of unhealthy omega-6 fatty acids.

New research suggests the combination could be particularly bad for patients with heart disease, arthritis, asthma and other diseases involving overactive inflammatory responses.

FRIDAY, June 13 (HealthDay News) -- Consuming fish and other foods that contain omega-3 fatty acids may reduce the risk of age-related macular degeneration (AMD), the leading cause of severe vision loss in elderly people.

FRIDAY, April 25 (HealthDay News) -- There's not enough scientific evidence to determine whether omega-3 fatty acid supplements can help treat people with bipolar disorder, say researchers at the University of Oxford in England.