Consumer Reports reviewed 15 top-selling fish oil brands to assess their quality and claims. Here's what they found:

1. Test Results Overview

• EPA & DHA Content: All tested brands contained the labeled amounts of EPA and DHA, key omega-3 fatty acids that support heart health.
• Contaminants: None exceeded limits for lead, mercury, dioxins, or PCBs as set by the U.S. Pharmacopeia (USP) or European Union.
• Proposition 65 Warning: Some samples had PCB levels that could trigger a warning under California's stricter regulations (Proposition 65):
• Affected brands: CVS, GNC, Sundown, and Nature's Bounty (two samples).

2. Claims vs. Reality

• Many brands claim to be “purified” or free of contaminants like PCBs and mercury.
• These claims lack a regulatory definition, and the FDA hasn’t enforced actions for contaminants, citing no public-health risk.

3. Enteric-Coating Issues

• Kirkland Signature: Two samples failed USP disintegration tests, meaning their enteric coating (intended to prevent fishy aftertaste) dissolved in the stomach instead of the small intestine.
• Oddly, Kirkland Signature is labeled “USP Verified,” which typically indicates compliance with quality standards.

4. Omega-3 Recommendations

• Dietary Sources: Most people can meet their omega-3 needs by eating fatty fish (e.g., salmon, sardines) twice a week.
• For Heart Disease: People with coronary heart disease need about 1 gram of EPA and DHA daily, often requiring supplements.
• Consult a Doctor: Omega-3 supplements may interact with certain medications.

5. Costs

• Quality supplements range from 17 to 64 cents per day for 1 gram of combined EPA and DHA.
• Look for supplements that meet recognized quality standards.

Bottom Line

• Prioritize Diet: Eating fatty fish provides omega-3s and avoids potential contaminants.
• Choose Wisely: If you need supplements, consult your doctor and choose verified brands that meet quality standards.
• Check Labels: Be aware of California's Proposition 65 warnings for PCBs on certain brands.

Staying informed ensures you make the best choice for your health!

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