Can you specify the fish type in your oil?

What Fish Are Used in Fish Oil Supplements?

Fish oil typically comes from small, cold-water fatty fish rich in omega-3s like EPA and DHA. Common sources include:

- Anchovies: Often the primary fish due to low contaminant levels and high oil yield. They're sustainable and harvested in large volumes from the Pacific and South America.
- Sardines: Frequently blended with anchovies for potency; sourced from the same regions.
- Mackerel: Used in some premium or wild-caught formulas, especially from the Atlantic.
- Herring: Common in Nordic brands, valued for purity from pristine waters.
- Men haden: Popular in U.S. products from the Atlantic coast, though sometimes listed as "fish body oil" generically.

Brands disclose this on labels (e.g., Nordic Naturals uses anchovies and sardines; Carlson Labs specifies anchovy, sardine, mackerel). Check the supplement facts panel or manufacturer's site for exact sourcing—it's required by FDA labeling rules for transparency.

Why the Fish Type Matters

These "low-trophic" fish bioaccumulate fewer toxins like mercury than predators like tuna or salmon. Purity testing (e.g., for heavy metals, PCBs) is standard in reputable products. Wild-caught is preferred over farmed for better omega-3 profiles and sustainability.

How to Verify Your Fish Oil's Source

- Read the label: Look for species listed under "other ingredients."
- Use apps like Seafood Watch for sustainability ratings.
- Third-party tests from NSF, USP, or IFOS confirm purity and species.

If it's your specific product, share the brand for precise details—generic bottles might just say "fish oil" without naming the fish.