Guide
Does fish oil have B12 in it?
No, fish oil doesn't naturally contain vitamin B12. B12 is concentrated in the protein and flesh of fish, not the extracted oil — a fish oil softgel and a piece of fish supply different nutrients.
No — fish oil doesn't naturally contain vitamin B12. B12 is concentrated in the protein and flesh of fish, not the extracted fat. Eating a piece of fatty fish supplies both EPA/DHA and B12, but a fish oil softgel — which is just the extracted oil — only supplies the fat, not the vitamin.
Why the oil doesn't carry it
Vitamin B12 is a water-soluble vitamin that's bound to protein in animal tissue; fish oil is the fat fraction extracted and concentrated separately from that tissue, per USDA FoodData Central's separate nutrient entries for fish oil versus whole fish. That's why a fish oil supplement's nutrition label lists fat-soluble nutrients — EPA, DHA, sometimes vitamin E — and not B12, even though the fish it came from is itself a source of B12 in its flesh.
Does fish oil have B12 in it?
No. Our panel lists fish oil concentrate, EPA, DHA and vitamin E — no B12, and no other vitamins beyond the E already listed. If B12 is something you're after, it has to come from a separate source: B12-rich food (fish, meat, eggs, dairy, or fortified foods), or a B12-specific supplement.
What actually matters if you're taking both
- They cover different things. Fish oil supplies EPA and DHA; B12 supports different, separate functions. Taking one doesn't reduce the need for the other if you're specifically trying to address a B12 intake gap.
- Timing. Fish oil is commonly taken with meals; B12 doesn't have a comparable food-timing requirement. There's no established benefit to taking them together versus apart.
- Checking a multivitamin. If you're taking a multivitamin, check whether it already includes B12 before adding a separate B12 supplement.
Questions people ask
Does fish oil have B12?
No. Fish oil concentrate is fat and omega-3 fatty acids; B12 is concentrated in fish flesh, not the oil, and isn't present unless a brand specifically adds it, which ours does not.
Can I take fish oil and B12 together?
Yes — there's no documented interaction between the two at typical supplement doses. They're unrelated nutrients that happen to both commonly come from fish as a food source.
Do I need a separate B12 supplement if I already take fish oil?
Yes, if B12 is something you're specifically trying to address — fish oil doesn't supply it. Whether you need a B12 supplement at all depends on diet and individual factors outside what a fish oil product page can assess.
Our product
Electric Tiger Omega-3 is fish oil concentrate only: 1,000 mg per softgel, providing 180 mg of EPA and 120 mg of DHA, plus vitamin E. No added B12. Full panel here.
Sources
- Flock MR, et al. Determinants of erythrocyte omega-3 fatty acid content in response to fish oil supplementation. PMID 24252845.
- USDA FoodData Central: fdc.nal.usda.gov.
- Electric Tiger Omega-3 Supplement Facts: product page.
Related reading: fish oil and calcium, fish oil foods, and what is fish oil.
Sources
- Determinants of erythrocyte omega-3 fatty acid content in response to fish oil supplementation: a dose-response randomized controlled trial In 115 healthy adults, daily doses from 300 mg to 1,800 mg of EPA and DHA raised a blood marker called the omega-3 index in a dose-dependent way over about five months; the trial measured a blood biomarker, not a health outcome.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
