Evidence snapshot
The most decision-relevant variable is usually combined EPA and DHA intake, not the marketing name on the front label.
Evidence is strongest in contexts like triglyceride lowering and correcting low intake, while broader wellness claims are often more diffuse.
Rancidity, underdosing, and label confusion are common practical problems.
Compound variations
Fish oil
The most common umbrella label, but actual EPA/DHA content varies widely.
Common use case
Users who tolerate marine oils and want the broadest product selection.
Dosage note
Compare labels by EPA and DHA, not capsule count.
Krill oil
Usually lower-dose per capsule and often marketed around phospholipid delivery.
Common use case
Users who specifically prefer krill-based products.
Dosage note
The evidence edge over standard fish oil is not established.
Algae omega-3
A non-fish source of DHA and sometimes EPA.
Common use case
Users who avoid fish-derived products.
Dosage note
Check whether EPA is included because some formulas skew heavily toward DHA.
Dosage and best practices
Dosage principles
- Look for actual EPA and DHA amounts per serving, not just total fish oil.
- Take with food when tolerance or absorption is an issue.
- Reassess whether the dose matches the goal: general intake support is different from targeted triglyceride protocols.
Best practices
- Choose products that clearly disclose EPA and DHA.
- Track bruising, reflux, and GI tolerance if you increase dose.
- Account for fish intake before assuming you need a high-dose product.