Marine superfood
Ethos Heavenly
Ethos Marine Phytoplankton is 100% pure Nannochloropsis gaditana, a tiny marine alga that sits at the very start of the ocean food chain. A natural, vegan source of omega-3 EPA, it also provides essential amino acids, minerals and antioxidants. Available as a powder or easy-to-take vegetarian capsules, with zero fillers, colourings or preservatives of any kind.
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Most omega-3 EPA comes from fish or krill oil, but fish get their omega-3 by eating microalgae such as phytoplankton. Ethos Marine Phytoplankton goes straight to the source, giving you a sustainable, plant-based alternative that's suitable for vegans and vegetarians. Its EPA comes naturally bound to phospholipids and polar lipids, the same form found in your cell membranes. Each batch is grown under controlled conditions by specialist European producers, then carefully dried to protect its nutrients, giving it a three-year shelf life.
Marine phytoplankton are microscopic algae that drift in the sunlit surface of the ocean. They form the base of the marine food chain and produce a large share of the oxygen we breathe. Nannochloropsis gaditana is a species valued for its natural omega-3 content.
Ethos Marine Phytoplankton naturally contains:
Powder: 2-4 grams mixed into food, juice or a smoothie. Its savoury umami flavour also works well sprinkled over soups, salads and savoury dishes.
Capsules: Take 2-4 capsules a day with water, as part of a healthy diet.
Do not exceed the recommended daily amount. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle.
Speak to your doctor or pharmacist before taking marine phytoplankton if you:
Not recommended for children unless advised by a doctor.
Store in a cool, dark, dry place, out of reach of children. Do not freeze
You can read a selection of published studies on marine phytoplankton and Nannochloropsis on this page click on clinical studies. All links go to PubMed and PubMed Central (PMC), the free research archives of the US National Library of Medicine. Inclusion of a study does not mean its authors or the National Library of Medicine endorse Ethos products.
Ethos Marine Phytoplankton is a food supplement. It is not intended to diagnose, treat, cure or prevent any disease.
Our marine phytoplankton is Nannochloropsis gaditana, a microscopic marine alga grown under carefully controlled conditions. Microalgae such as Nannochloropsis are attracting growing interest from scientists as a sustainable source of nutrition, including omega-3 fatty acids, protein and antioxidants.
Our Ethos Heavenly phytoplankton in powder, capsule and liquid comes from specialist suppliers with dedicated research and development facilities in Europe. Their senior scientific team, including PhD microbiologists and food and aquaculture specialists, has many years of experience in optimising how microalgae are grown, as well as their quality and their uses. Their work ranges from laboratory growing trials to detailed pilot studies and large-scale production.
Below is a selection of published studies on marine phytoplankton and Nannochloropsis, so you can explore the research yourself. Research into microalgae for human nutrition is still developing, and many studies are small or used different species or extracts, so results may not apply directly to our product. These studies are shared for information only. Always speak to your doctor before starting any new supplement.
Marine Phytoplankton Improves Exercise Recovery in Humans and Activates Repair Mechanisms in Rats
A study of phytoplankton and recovery after exercise, in people and in rats.
Marine phytoplankton improves recovery and sustains immune function in humans and lowers proinflammatory immunoregulatory cytokines in a rat model
Looks at exercise recovery and immune function in people, with supporting animal work.
Targeted Marine Phytoplankton Supplementation Improves Recovery During Intensified Training
A trial in people during periods of hard training.
Marine Phytoplankton Bioactive Lipids and Their Perspectives in Clinical Inflammation
A 2025 review of phytoplankton fats and their possible role in inflammation.
Omega-3 EPA Rich Extract from the Microalga Nannochloropsis Decreases Cholesterol in Healthy Individuals: A Double-Blind, Randomized, Placebo-Controlled, Three-Month Supplementation Study
A three-month placebo-controlled trial of a Nannochloropsis omega-3 extract.
Omega-3 EPA Polar-Lipid Rich Extract from Microalgae Nannochloropsis Decreases Plasma Triglycerides and Cholesterol in a Real-World Normolipidemic Supplement Consumer Population
A real-world study of people already taking the supplement.
Acute appearance of fatty acids in human plasma: a comparative study between polar-lipid rich oil from the microalgae Nannochloropsis oculata and krill oil in healthy young males
Compares how well the body absorbs omega-3 from Nannochloropsis oil and from krill oil.
Safety assessment of the microalgae Nannochloropsis oculate
A safety study of Nannochloropsis oculata as a food ingredient.
Safety assessment of EPA-rich polar lipid oil produced from the microalgae Nannochloropsis oculate
A safety study of the omega-3 oil made from Nannochloropsis.
Biomass nutrient profiles of the microalga Nannochloropsis
An analysis of Nannochloropsis's nutritional content.
Ethos Heavenly Marine Phytoplankton Nannochloropsis gaditana is a food supplement. It is not intended to diagnose, treat, cure or prevent any disease. If you have a medical condition, consult your doctor before use.
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