Regular fish oil supplement use had different impacts on cardiovascular disease (CVD) progression based on prior cardiovascular health. A study found that in individuals with no prior CVD, fish oil supplements were associated with an increased risk of stroke and atrial fibrillation. However, in those with existing CVD, regular fish oil supplement use had beneficial effects on disease progression and risk of death. Researchers emphasized the need for more studies to explore the effects of fish oil supplementation on CVD outcomes and advised caution when using fish oil or omega-3 fatty acid supplements for primary prevention due to potential adverse effects and uncertain cardiovascular benefits.
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Regular fish oil use may pose cardiovascular risk in those with no prior CVD
