Omega-3 fatty acids are essential polyunsaturated fats that the body cannot produce on its own, making dietary or supplemental intake necessary. The three main types — EPA and DHA, found primarily in fatty fish and algae, and ALA, found in plant sources like flaxseed — each play distinct roles in cellular function and inflammatory regulation. Research suggests that EPA and DHA may support brain health, cognitive function, and mood regulation, with numerous studies indicating potential benefits for individuals experiencing symptoms of depression or ADHD. Evidence also points to roles in cardiovascular health, joint comfort, eye function, and skin integrity, largely through their well-documented anti-inflammatory properties. While fish oil and krill oil remain the most popular supplemental forms, algal oil offers a plant-based alternative that provides EPA and DHA directly without marine-derived sourcing.
Compare this supplementResearch suggests that omega-3 fatty acids, particularly EPA and DHA derived from fish oil, have meaningful anti-infl...
View studies →Research suggests that omega-3 fatty acids — particularly DHA and EPA derived from marine sources — may offer some be...
View studies →Research suggests that omega-3 fatty acids, particularly DHA and EPA, play meaningful roles in brain health, with obs...
View studies →Research suggests that omega-3 fatty acids, particularly EPA and DHA, may play a meaningful role in supporting eye he...
View studies →Research suggests that omega-3 fatty acids, particularly EPA and DHA, may offer meaningful benefits for skin health a...
View studies →Research suggests that omega-3 fatty acids may play a supportive role in cholesterol and lipid management, particular...
View studies →Research suggests that omega-3 fatty acids may play a beneficial role in joint health, particularly by influencing th...
View studies →The available linked study does not directly investigate omega-3 fatty acids as a treatment or support strategy for A...
View studies →The two studies provided do not investigate omega-3 fatty acids or depression in any capacity. One examines metabolic...
View studies →Nattokinase is a strong fibrinolytic enzyme and combined with omega-3 blood-thinning effects may ...
View details →Both have blood-thinning properties that are additive when combined.
View details →Both have mild anticoagulant effects that may be additive.
View details →Both have mild blood-thinning effects.
View details →Both support cardiovascular health through complementary mechanisms.
View details →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 500–1,500 mg | Daily | ADHD support in children and adolescents | Common in pediatric RCTs examining combined EPA/DHA for attention and behavior |
| Capsule | 1,000–2,000 mg | Daily | depression support and brain health | Based on meta-analyses; EPA-dominant formulas (EPA >60%) most studied for mood |
| Capsule | 500–1,000 mg | Daily | eye health and cognitive function maintenance | DHA-dominant formulas studied for retinal health and age-related cognitive decline (AREDS2) |
| Capsule | 1,000–2,000 mg | Daily | general health, cardiovascular support, and cholesterol management | Common in clinical trials and AHA guidelines for general cardiovascular health |
| Capsule | 2,000–4,000 mg | Daily | triglyceride reduction and anti-inflammatory support | Based on RCTs for hypertriglyceridemia; FDA-approved prescription doses at 4g/day |
| Oil | 1,000–3,000 mg | Daily | joint health and inflammation reduction | Based on RCTs in rheumatoid arthritis and osteoarthritis populations |