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Not All Fish Oils Are Created Equal—Here’s How to Choose the Best

Fish oil is one of the most well-researched supplements for supporting heart health, brain function, joint mobility, and inflammation balance. Selecting the right formulation is important to ensure you’re getting the purity, potency, and absorption needed for maximum health benefits.

3 Must-Dos for Choosing the Right Fish Oil

  1. Check EPA/DHA Levels & Bioavailability: Choose a fish oil with at least 1,000 mg of combined EPA and DHA per serving. EPA offers cardiovascular and anti-inflammatory support, while DHA is essential for cognitive function and visual health. For optimal absorption, select products in re-esterified triglyceride (rTG) or phospholipid form rather than the less bioavailable ethyl ester (EE) versions.

  2. Prioritize Purity & Freshness: Choose third-party tested products with IFOS or USP certifications to ensure they are free of contaminants like mercury, PCBs, and dioxins. 

  3. Sustainable & Clean Sourcing – The best fish oils come from wild-caught, cold-water fish like anchovies, sardines, and Alaskan pollock. Certifications like MSC or Friend of the Sea confirm responsible harvesting practices.

Oxidation & Rancidity: How to Ensure Freshness & Stability

  • Why It Matters: Omega-3s are highly susceptible to oxidation, which can degrade potency and create harmful free radicals.

  • What to Look For:

    • Antioxidants for Stability: Fish oils with vitamin E (tocopherols) or astaxanthin naturally prevent oxidation.

    • Dark or Opaque Packaging: Protects from light-induced degradation to ensure freshness.

SuppCo Protocols that Include Fish Oil

Explore our expertly curated protocols that integrate high-quality fish oil for targeted health benefits:

TrustScore: Top Rated Fish Oil Supplements

We've identified the highest-quality fish oils based on EPA/DHA content, purity, and sustainability:

Learn More About SuppCo TrustScore 

Take the guesswork out of fish oil. Choose a science-backed, high-purity supplement to support your heart, brain, and joint health today.

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