New research indicates fish oil supplements may pose risks for those in good health but offer benefits for those with existing cardiovascular conditions. Credit: SciTechDaily.comreveals that while regular fish oil supplement usage might increase the risk of heart disease and stroke in individuals with no prior cardiovascular issues, it could also slow disease progression and reduce mortality in those with existing conditions.
They drew on 415,737 UK Biobank study participants , aged 40-69, who were surveyed between 2006 and 2010 to gather basic background information. This included their usual dietary intake of oily and non-oily fish and fish oil supplements. Among those who progressed from good cardiovascular health to atrial fibrillation, 3085 developed heart failure, 1180 had a stroke, and 1415 a heart attack. And 2436 of those with heart failure died, as did 2088 of those who had had a stroke, and 2098 of those who had had a heart attack.
However, among those who had cardiovascular disease at the start of the monitoring period, regular use of fish oil supplements was associated with a 15% lower risk of progressing from atrial fibrillation to a heart attack, and a 9% lower risk of progressing from heart failure to death.Further in-depth analysis revealed that age, sex, smoking, consumption of non-oily fish, high blood pressure, and use of statins and blood pressure lowering drugs changed the associations observed.
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