Researchers have for long believed that omega-3 fatty acids derived from fish have proved useful in dipping the risks of heart diseases and cardiac deaths.

A study appeared in the Journal of the American Medical Association might be able to throw some light on this fact.

There might be many who believe so but the findings have garnered skepticism from cardiac experts too.

In the study, Dr Ramin Farzaneh-Far of the University of California San Francisco and colleagues analyzed more than 600 men who had heart disease and established the fact that people who consumed omega-3 looked biologically younger which means their telomeres, the ends of their chromosomes, looked healthier and longer.

Farzaneh-Far stated, "Patients with the highest levels of omega-3 fish oils were found to display the slowest decrease in telomere length, whereas those with the lowest levels of omega-3 fish oils in the blood had the fastest rate of telomere shortening.”

Some cardiologists however said that it was too soon to believe these findings and more needs to be studied before the findings are put into practice.