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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