Marine phytoplankton

Whole food nutrientEnergyEmerging

The microalgae at the base of the entire ocean food chain. Dense in trace minerals, EPA, and bioavailable nutrients — though clinical evidence is thin compared to spirulina / chlorella.

EvidenceLimited (emerging)

Strong nutrient density on paper. Limited human trial data — most evidence is anecdotal. Some small studies on EPA delivery and immune support. Effects: 4–12 weeks (subjective).

Marine phytoplankton are microscopic algae and cyanobacteria that produce roughly half of all oxygen on Earth and form the base of the ocean food web. As a supplement they're concentrated single-cell organisms (most commonly Nannochloropsis or Tetraselmis species) cultivated in clean photobioreactors. Marketed for their complete nutrient profile (every essential amino acid, EPA omega-3, trace minerals, carotenoids, chlorophyll). Anecdotal energy and wellbeing benefits are strong; rigorous clinical evidence is limited. Treat as a 'green superfood' alongside spirulina and chlorella rather than a precision therapeutic.

Form
Liquid (Oceans Alive) or powder from photobioreactor cultivation. Quality varies — look for traceable single-strain products.
Dose
Per product label (typically 1–3 ml liquid or 500–2,000 mg powder daily).
Timing
AM, empty stomach (away from food).
Schedule
Daily.
Side effects
Generally well-tolerated. Mild GI upset rare. Some report initial 'detox' feeling.
Interactions
Generally clean. Theoretical iodine content can interact with thyroid medication at high doses.
Contraindications
Algae / seafood allergy. Pregnancy / breastfeeding (limited safety data).
Lab markers
Not standard.
Food sources
Marine phytoplankton are not directly consumed as food in Western diets — fish and shellfish carry the EPA up the food chain to us.

Pairs with

Chlorella, spirulina (broader algae stack). Omega-3 from fish oil if absolute EPA dose is the goal.