Evidence supporting the use of: Omega-3 fatty acids
For the health condition: Blood Clots (prevention of)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Omega-3 fatty acids, primarily found in fish oil (EPA and DHA), have been researched for their effect on blood clot prevention. Scientific evidence indicates that omega-3s have antithrombotic properties—meaning they can reduce the formation of blood clots. Mechanistically, omega-3s decrease platelet aggregation (the clumping together of blood cells), reduce blood viscosity, and favorably modulate the production of eicosanoids (such as prostaglandins and thromboxanes) that influence clotting. Several randomized controlled trials and meta-analyses have shown that supplementation with omega-3s can lead to a modest reduction in platelet aggregation and some clotting factors, which theoretically lowers the risk of thrombosis. However, most studies note that the effect is generally moderate and may not translate to a significant reduction in clinical thrombotic events (like heart attack or stroke) in all populations. The American Heart Association recognizes the cardiovascular benefits of omega-3s, but routine use specifically for clot prevention is not universally recommended, especially as a replacement for standard antithrombotic medications. Some guidelines suggest potential use in people at risk, but highlight the need for further research. Overall, there is scientific support for a biological effect on clotting, but the clinical significance for prevention of blood clots is considered moderate and not definitive.

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Other health conditions supported by omega-3 fatty acids

Acne
Acquired Immune Deficiency Syndrome
Addictions (drugs)
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Aging (prevention)
Alcoholism
Allergies (food)
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Alzheimer's Disease
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Athletic and Exercise Aids
Attention Deficit Disorder
Autism
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Backache
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Birth Defects (prevention)
Blood Clots (prevention of)
Bloodshot Eyes
Body Building
Broken Bones
Bulimia
Cancer (natural therapy for)
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Canker Sores
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Cholesterol (high)
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Concussions
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Congestive Heart Failure
Dementia
Depression
Diabetes
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Eczema
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Endometriosis
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Gout
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Hashimoto's Disease
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Parkinson's Disease
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PMS Type D
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