The current upsurge in its popularity is thanks to an early 1970’s Danish study on Greenland Eskimos. The researchers observed that in spite of the extremely high-fat diet of the Eskimos, incidence of heart attacks and other cardiovascular diseases was very low. They concluded that the real reason for this was ironically, the high-fat fish diet that the Eskimos consumed. They found that this diet had a high concentration of a particular type of unsaturated fatty acid called Omega 3 fatty acid