Taking a lot of DHA (a type of omega-3 from fish oil) every day can drop your bad blood fats by about a quarter to a third—if you already have high levels—but EPA (another omega-3) doesn’t work as well, so DHA is the better choice for lowering triglycerides.

Evidence from Studies

Supporting (0)

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No supporting evidence found

Contradicting (1)

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Variability in the Clinical Effects of the Omega-3 Polyunsaturated Fatty Acids DHA and EPA in Cardiovascular Disease—Possible Causes and Future Considerations

Narrative Review

2023 Nov 18

This study talks generally about how omega-3s like DHA and EPA might affect heart health, but it doesn’t show hard numbers proving that high-dose DHA lowers triglycerides by 25–30% more than EPA.

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Variability in the Clinical Effects of the Omega-3 Polyunsaturated Fatty Acids DHA and EPA in Cardiovascular Disease—Possible Causes and Future Considerations

Score: 1

DOI: 10.3390/nu15224830

Similar Assertions

EPA and DHA are two types of omega-3 fats that work differently in your body—one might calm inflammation, the other might change how your body stores fat—and that’s why some studies show benefits when you take them together, but others don’t, depending on which one you use alone.

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80%

Taking fish oil supplements with EPA and DHA might help keep your blood from clotting too easily, which could lower your chance of having a heart attack or stroke if you already have heart disease.

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74%

People with more of the good omega-3 fats (EPA and DHA) in their red blood cells tend to have less heart disease and do better over time if they already have heart problems.

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72%