Omega-3s are definitively known to have membrane-enhancing capabilities in brain cells. Often called a "brain food," salmon is an excellent source of omega-3 fats. Wild salmon is particularly high in omega 3 fats and low in mercury. Below, we share an easy recipe combining green tea and salmon—both excellent additions to a healthy diet.
Most salmon available for sale is farm-raised and higher in mercury and other contaminants than wild salmon. Vital Choice Fine Seafood is an excellent resource for several varieties of frozen wild salmon and halibut.
The basics about Omega-3s: http://en.wikipedia.org/wiki/Omega-3_fatty_acid
Omega-3 fatty acids have been shown to support heart health. The American Heart Association recommends eating fish (particularly fatty fish) at least two times a week.