Omega-3 fatty acids found in salmon is an excellent source to boost up HDL in your blood stream. Omega-3 fatty acid is, a type of poly-unsaturated fatty acids which can only be supplied by food sources. A study chaired by Gary J. Nelson, Ph.D., of the U.S. Dept of Agriculture's Western Human Nutrition Research Center in San Francisco, showed that HDL increased by 10% by just eating 20 days of of a high salmon diet. Moderation is the key. Include salmon to your meals occasionally and enjoy its health benefits.