Algae Oil

The original source of EPA and DHA -- the plant-based way to get omega-3s without fish

Non-inferior bioavailability to fish oil

Vegan & sustainably sourced

Important: These statements have not been evaluated by the FDA. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before starting any supplement.

Overview

Algae oil supplies EPA and DHA -- the same two omega-3 fatty acids found in fish oil -- extracted directly from marine microalgae rather than fish. That's not a workaround; it's the original source. Fish don't produce EPA and DHA themselves -- they accumulate it by eating algae (or other fish that ate algae) up the marine food chain. Algae oil simply skips the middleman.

That makes it the standard omega-3 option for vegans and vegetarians, but the appeal has broadened beyond diet: algae farming avoids the overfishing, bycatch, and heavy-metal accumulation concerns tied to sourcing from fish, and modern strains are cultivated specifically to produce a clean, concentrated EPA/DHA oil without any fishy aftertaste.

Potential Benefits

Matches Fish Oil Bioavailability

A 2025 randomized, placebo-controlled trial found plasma phospholipid levels of DHA and EPA from microalgal oil were statistically non-inferior to fish oil -- the body absorbs and uses it just as well.

Lowers Triglycerides

A randomized trial in adults with mild-to-moderate hypertriglyceridemia found a microalgal DHA/EPA oil meaningfully reduced triglycerides -- the same benefit long associated with fish-derived omega-3s.

Raises Omega-3 Status in Vegetarians

A randomized trial in normolipidaemic vegetarians -- a population that typically has low baseline omega-3 status -- found microalgal DHA supplementation reduced plasma triglycerides by roughly 23% versus baseline.

Sustainable, Contaminant-Conscious Source

Cultivated algae sidesteps the overfishing and marine-food-chain heavy-metal accumulation concerns tied to fish and krill oil, since it's grown directly rather than harvested from wild stocks.

Typical Dosage

Standard Daily Dose

250–900 mg

Combined EPA + DHA daily -- matching the range used in positive human trials

What to Look For on the Label

EPA + DHA content, not just "algae oil"

Check the actual milligram amount of each fatty acid per serving, the same way you would with fish oil

Pro Tips

Take with a meal containing some fat -- omega-3s are fat-soluble and absorb better that way
Some algae oils skew DHA-heavy with little EPA -- check the ratio if you want both
Give triglyceride-lowering effects several weeks -- the positive trials ran on that timescale, not days
A genuinely direct fish oil substitute -- no need to double-dose to "make up" for a plant source

Research Snapshot

A 2025 randomized, double-blind, placebo-controlled trial measured plasma phospholipid DHA and EPA levels in adults after 6 and 14 weeks of supplementation with either microalgal or fish oil, finding the bioavailability of the algal source was statistically non-inferior to fish oil. That's consistent with earlier trial data: a randomized study in adults with mild-to-moderate hypertriglyceridemia found a microalgal DHA/EPA oil meaningfully lowered triglycerides, and a separate trial in vegetarians found microalgal DHA alone reduced plasma triglycerides by about 23% from baseline.

Source: Bailey et al., International Journal of Molecular Sciences (2025)

How Algae Oil Compares

Ingredient	Best For	Key Difference
Algae Oil	Vegan/Vegetarian Omega-3	Plant-based source, non-inferior bioavailability to fish oil
Fish Oil (Omega-3)	General Heart & Brain Health	Largest overall evidence base; sourced from fish, not vegan
Krill Oil	Absorption, Added Astaxanthin	Phospholipid-bound omega-3s; sourced from krill, not vegan
Cod Liver Oil	Omega-3 + Vitamins A & D	Adds fat-soluble vitamins alongside omega-3s; not vegan

These are the most common comparisons our customers ask about in-store.

Popular Stacks with Algae Oil

Vegan Heart Health

Algae Oil + CoQ10 + Vitamin D3

Cardiovascular support built entirely from plant and lab-cultivated sources

Vegan Brain Support

Algae Oil + Lion's Mane + Citicoline

DHA is a major structural fat in the brain; pairs with other cognition-focused ingredients

Plant-Based Foundation

Algae Oil + Iron + Vitamin B12

Covers the common nutrient gaps of a fully plant-based diet

Frequently Asked Questions

Is algae oil as effective as fish oil?

Yes -- a 2025 randomized, placebo-controlled trial found the bioavailability of DHA and EPA from microalgal oil was statistically non-inferior to fish oil in plasma phospholipids. Algae is actually the original source of omega-3s in the marine food chain -- fish accumulate it by eating algae, they don't produce it themselves.

Does algae oil actually lower triglycerides?

There's direct human trial evidence for this. A randomized trial in adults with mild-to-moderate hypertriglyceridemia found a microalgal DHA/EPA oil meaningfully lowered triglycerides, and an earlier trial in normolipidaemic vegetarians found microalgal DHA alone reduced plasma triglycerides by roughly 23% compared to baseline.

Why would someone choose algae oil over fish oil or krill oil?

The main reasons are dietary (vegan or vegetarian) and environmental (algae farming doesn't deplete wild fish stocks or carry the same bycatch and sustainability concerns as fishing). It's also naturally free of the fishy aftertaste and heavy-metal accumulation concerns that come with sourcing from fish higher up the marine food chain.

Sources & References

1. Bailey, E., Wojcik, J., Rahn, M., Roos, F., Spooren, A., & Koshibu, K. (2025). Comparative Bioavailability of DHA and EPA from Microalgal and Fish Oil in Adults. International Journal of Molecular Sciences, 26(19), 9343.

2. Maki, K.C., Yurko-Mauro, K., Dicklin, M.R., Schild, A.L., & Geohas, J.G. (2014). A new, microalgal DHA- and EPA-containing oil lowers triacylglycerols in adults with mild-to-moderate hypertriglyceridemia. Prostaglandins, Leukotrienes and Essential Fatty Acids, 91(4), 141–148.

3. Geppert, J., Kraft, V., Demmelmair, H., & Koletzko, B. (2006). Microalgal docosahexaenoic acid decreases plasma triacylglycerol in normolipidaemic vegetarians: a randomised trial. British Journal of Nutrition, 95(4), 779–786.

All references are peer-reviewed studies or position stands from reputable organizations.