Add the two listed fatty acids
ODS lists 0.17 g DHA and 0.02 g EPA in a three-ounce drained serving of light tuna canned in water. Together that is 0.19 g, or 190 mg, EPA plus DHA. [1]
The value describes that food-table entry. It is not a universal result for every can, fish species, packing liquid or serving size. The can’s net weight may include liquid that is excluded from the drained portion. [1]
Omega-3 is one part of seafood choice
The fatty-acid estimate answers a composition question. It does not establish an unrestricted seafood intake, a mercury assessment or a personal replacement for a supplement regimen. Those decisions involve other information. [1]
Compare foods using the same edible portion and the same fatty-acid total. Total fat and total omega-3 also should not be substituted for EPA plus DHA without checking what the numbers include. [1]
Scale a matching portion
At the representative concentration, a six-ounce drained portion would provide about 380 mg EPA plus DHA. This doubles the food-table estimate; it does not verify the contents of a particular brand.
| Detail | Interpretation |
|---|---|
| Three ounces drained | 190 mg EPA plus DHA |
| Six ounces at same concentration | 380 mg |
| Net can weight | May include liquid |
Sources for this article
- Omega-3 Fatty Acids - Health Professional Fact Sheet
Source consulted: 2026-09-17. This is a reference resource, not a claim that we conducted the studies or tested a product.