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High triglycerides and cholesterol. There's strong evidence that omega-3 fatty acids can significantly reduce blood triglyceride levels. There also appears to be a slight improvement in high-density lipoprotein (HDL, or "good") cholesterol, although an increase in levels of low-density lipoprotein (LDL, or "bad") cholesterol also was observed.
Myth: Omega-3 fatty acid supplements will help your heart. The argument: Eating fish may lower your risk of dying of heart disease thanks to the unsaturated fatty acids in seafood, which may reduce inflammation and lower levels of blood fats called triglycerides.
When the researchers tested the specific omega-3 fatty acids contained in fish oil individually, they found that while EPA did not affect cholesterol levels, DHA increased them. This suggests...
Studies suggest omega-3 fatty acids in fish oil supplements have helped reduce triglyceride levels. Still, fish oil’s effects on cholesterol levels are less established. Some of fish oil’s benefits may be attributed to its anti-inflammatory properties, which help protect against cellular damage.
Omega-3 can help lower cholesterol levels by reducing triglycerides and increasing HDL (good) cholesterol.
In addition, omega-3s may help you by raising your HDL (good) cholesterol and lowering your blood pressure. Some studies show omega-3s may lower your risk for: Cardiovascular disease (CVD) .
Omega-3 fatty acids from fish and fish oil have been recommended by the American Heart Association for the past 20 years to reduce cardiovascular events in people who already have cardiovascular disease.
A new analysis, published in June in JAHA, found taking more than 2 grams per day of DHA and EPA combined in supplement form may lower triglycerides and non-HDL cholesterol, but not LDL cholesterol. Non-HDL level is someone's total cholesterol minus their HDL, the "good" cholesterol that helps the body get rid of some of the harmful LDL.
Omega-3 fatty acids lower triglyceride levels and increase high-density lipoprotein (ie, good cholesterol) levels. They may also decrease platelet aggregation, which can prevent the coronary arteries from occluding (occlusion would prevent or decrease blood flow to the heart).
Although no data have suggested that the low-density lipoprotein-cholesterol (LDL-C) increases associated with some omega-3 fatty acid formulations lead to adverse outcomes, these elevations in LDL-C levels may compromise the achievement of lipid targets.