Overview

• Study involved over 415,000 participants from the UK Biobank, observed for nearly 12 years.
• Healthy individuals taking fish oil supplements faced a 13% higher risk of atrial fibrillation and a 5% greater risk of stroke.
• Prescription fish oil showed benefits for those with existing heart conditions but still posed risks for atrial fibrillation.
• Experts recommend obtaining omega-3 fatty acids from dietary sources like salmon and sardines instead.
• Quality and purity of over-the-counter fish oil supplements are inconsistent, raising concerns about contaminants and heavy metals.