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Kirkland Signature Fish Oil 1000 mg
  • USP Verified

Kirkland Signature Fish Oil 1000 mg

Costco's USP Verified fish oil — 400 softgels.

Fish oil
1,000 mg
EPA + DHA
250 mg
Servings
400

Per serving, from the label. Formulas can change — always check the package.

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Why it's on our list

Kirkland Signature fish oil is the Costco bottle people hunt down on eBay when they don't have a membership: 400 softgels of 1,000 mg fish oil with 250 mg of EPA + DHA each, USP Verified. More than a year's supply of a basic omega-3 in one bottle.

  • 1,000 mg fish oil per softgel
  • 400 softgels per bottle
  • USP Verified

Best for

Questions people ask

Is fish oil the same as omega-3?

Fish oil is the source; EPA and DHA are the omega-3 fatty acids inside it. The number to compare is EPA + DHA per serving on the label, not the total 'fish oil' milligrams on the front.

How much EPA and DHA is in Kirkland Signature Fish Oil 1000 mg?

The Supplement Facts panel lists EPA and DHA separately per serving; this page shows those label numbers. Two softgels of a 'triple strength' oil can contain more than four of a basic one — always compare per serving.

Fish oil or krill oil?

Both provide EPA and DHA; krill oil typically has less per softgel and costs more, with its omega-3s partly in phospholipid form. For most people the practical comparison is EPA + DHA per serving and price per serving.

Does fish oil go bad?

Yes — it can oxidize. Buy from a seller with fresh stock, keep it cool and closed, and a fishy burp or rancid smell means it's time to replace it.

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