Doctors have always favored fish-rich diet. Various studies from time to time have confirmed the faith of doctors in nutritional and medicinal properties of fish diet. The two latest researches have proved the usefulness of Omega-3 acids, found in oily fish like salmon. Omega-3 is also present in flaxseed and walnuts.

The research done by a team at Brigham and Women's Hospital and Harvard Medical School proved the anti-inflammatory value of diets rich in some types of fish. Resolvin E1 (RvE1) is a metabolic product of an omega-3 fatty acid. This study identified RvE1 as having a key role in slowing the development of airway inflammation. Other studies have indicated that increased levels of omega-3 fatty acids are associated with lower asthma prevalence in people, but the mechanisms to support that observation are poorly understood. This study provided scientists an opportunity to focus on the role of RvE1 as a potential therapeutic candidate.

The other research led by William Lassek, from the University of Pittsburgh proved that omega-3 increases the higher intelligence level in girls as compared to boys. Researchers analyzed the scores of almost 4,000 IQ tests taken by children aged between six and 16. They found that girls who ate enough Omega-3 scored an average of one per cent more than those who didn't. During childhood and adolescence women store Omega-3 on their hips and thighs in preparation for childbearing.

William Lassek, while presenting the report at a meeting of the Human Behaviour and Evolution Society in Kyoto, Japan, said that body fat in those areas was "like a bank" into which deposits were made.

The research also proved that consumption of omega 6 can reduce brain power as compared to omega 3.

"Brain and body can process limited amounts of fatty acids, and the omega-6 can push out the omega-3," said Joseph Hibbeln at the National Institutes of Health in Bethesda, Maryland.