Fish Oil (EPA/DHA) vs Krill Oil
Different substances from the same group, not two forms of one thing. They differ in what each one does, how much of it you absorb and what a month costs.
Side by side
Green marks the better value| Fish Oil (EPA/DHA) | Krill Oil | |
|---|---|---|
| Absorption score | 85/100 | 95/100 |
| Cost per 100 mg delivered | $0.07 | $0.21 |
| Safety rating | 8/10 | 8/10 |
| Cost per month | $25 | $60 |
| Daily dose | 1-2g EPA/DHA | 500-1,500 mg |
| Best timing | With meals | With meals for absorption |
| Evidence level | A | B |
Verdict
Fish Oil (EPA/DHA) wins on 2 of the measurable metrics.
Per 100 mg delivered it costs $0.07 against $0.21 — the price comparison that accounts for both elemental content and absorption.
What actually differs
Fish Oil (EPA/DHA)
Essential omega-3 fatty acids crucial for cardiovascular health, brain function, and inflammation control
- Best absorption
- Natural form
- Excellent research
- Multiple benefits
- Fishy taste/burps
- Oxidation risk
- Quality varies
- Large capsules
Krill Oil
Premium marine oil from Antarctic krill containing phospholipid-bound omega-3 fatty acids and astaxanthin for superior absorption and antioxidant protection
- Superior absorption
- No fishy burps
- Antioxidant protection
- Sustainable source
- Higher cost
- Shellfish allergy risk
- Limited research vs fish oil
- Smaller omega-3 content per capsule
What each form is for
Same compound, but the dose, the ceiling and the record differFish Oil (EPA/DHA) — heart & brain health.
Usual daily dose 1-2g EPA/DHA, taken with meals. It is named as the suspect product in 557 FDA reports. Evidence grade A.
Krill Oil — superior omega-3 absorption & cardiovascular health.
Usual daily dose 500-1,500 mg, taken with meals for absorption. It is named as the suspect product in 557 FDA reports. Evidence grade B.
How these numbers are read
- The absorption score ranks forms of the same compound against each other. It is not a measured share of the dose — see how we derive it.
- Safety rating reflects tolerance at normal doses, not toxicity risk.
- Cost is per month at the typical daily dose, so a cheaper form taken at double the dose is not cheaper.
- Evidence level A means the form itself was studied, not just the parent compound.
Where to buy
Both forms deliver the same compound — pick by the numbers above, then check the label matches.
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Common questions
Which is better, Fish Oil (EPA/DHA) or Krill Oil?
Krill Oil absorbs better — 95% against 85%. Absorption decides how much of the dose actually reaches you, so it usually matters more than the milligrams printed on the label.
What is the difference between Fish Oil (EPA/DHA) and Krill Oil?
They are different substances from the same group, so they do not do the same job. They also differ in how well the body takes them up, how they are tolerated and what a month costs: $25 against $60.
Can you take Fish Oil (EPA/DHA) and Krill Oil together?
Yes — they are different substances, so taking both is normal and often the point. Check each one against your other supplements rather than against each other.