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Writer's picturemeowdini
May 312 min read

Fish Oil Supplements: Risk or Benefit for Heart Health?

Updated: Jun 1

A recent study suggests that regular use of fish oil supplements may actually increase the risk of stroke and atrial fibrillation (AFib) among individuals without pre-existing heart issues. While fish oil is often touted for its heart-healthy omega-3 fatty acids, experts caution against overreliance on supplements and recommend obtaining nutrients from food sources.


Fish oil, Supplements, Heart health, Stroke risk, Atrial fibrillation, Omega-3 fatty acids, Cardiovascular disease, Prescription fish oil, Dietary recommendations, Health risks
A new study raises concerns about the use of fish oil supplements, linking them to a higher risk of stroke and atrial fibrillation. Discover expert insights on the risks and benefits of fish oil for heart health.

  • The study, based on data from over 415,000 participants in the UK Biobank, found that regular use of fish oil supplements was associated with a 13% higher risk of developing AFib and a 5% heightened risk of stroke.

  • Prescription fish oil versions, such as Vascepa and Lovaza, are primarily used to counter risk factors like high triglycerides in individuals with cardiovascular disease risk.

  • Experts emphasize that over-the-counter fish oil supplements may lack purity and consistency, potentially containing contaminants like mercury.

  • While fish oil may have benefits for individuals with existing heart disease, its use should be approached cautiously, and only after consultation with a healthcare provider.


Expert Perspectives

  • Dr. Andrew Freeman, director of cardiovascular prevention and wellness at National Jewish Health, advises against relying on over-the-counter fish oil due to its potential risks and lack of recommendation by medical societies.

  • Dr. Richard Isaacson, an Alzheimer's preventive neurologist, recommends testing omega-3 fatty acid levels before starting fish oil supplementation and suggests obtaining nutrients from food sources like sardines and wild-caught salmon.



While fish oil supplements have long been promoted for heart health, recent research suggests potential risks, particularly for individuals without pre-existing heart conditions. Consulting with a healthcare provider and obtaining nutrients from food sources may be safer and more effective in supporting heart health.



Source: CNN

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