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Phospholipids

Also known as: Phosphatidyl compounds, Phosphatidylcholine, Phosphatidylethanolamine, Membrane lipids

B
Evidence

Phospholipids are a class of lipids that form the structural basis of cell membranes and serve as delivery vehicles for omega-3 fatty acids and other fat-soluble compounds. In krill oil, phospholipids enhance bioavailability of EPA/DHA compared to fish oil triglycerides.

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Daily target & upper limit

550 mg / day · UL 3500 mg

Phospholipids has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:

Phospholipids dosage reference →

Primary uses

  • Enhanced absorption of omega-3 fatty acids
  • Cellular membrane support
  • Liver health
  • Cognitive function support

How it works

  • Structural components of cell membranes and lipoproteins
  • Facilitate lymphatic absorption of fatty acids before portal circulation
  • Support cell signaling and membrane fluidity
  • Serve as precursors to neurotransmitters (e.g., acetylcholine)

Dosage

Typical range
Typically 50–300 mg daily as part of krill/fish oil products; standalone phospholipids 100–600 mg daily
Timing
With meals
With food
Required; fat-soluble compound
Duration
Chronic supplementation generally safe; benefits for cognition typically observed over weeks to months
Special populations
Generally well-tolerated; limited data in pregnant/nursing populations

Forms

  • As component of krill oil and fish oil products· 70/100
  • Standalone supplements (phosphatidylcholine, phosphatidylserine)· 70/100

Safety

Common side effects

  • Mild gastrointestinal upset (rare)
  • Fishy odor in breath or sweat (from phospholipid-bound omega-3s)

Contraindications

  • Soy allergy (many phospholipid supplements sourced from soy lecithin)
  • Shellfish allergy (if from krill source)

Products containing Phospholipids

Top-scoring supplements in our catalog that list Phospholipids on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.

Complement
ForHer Hormone Balance and Longevity Multivitamin for Women
92
Thorne
Phosphatidyl Choline
92
Nootropics Depot
Smart PS™ Phosphatidylserine Softgels
86
Nootropics Depot
NKO™ Krill Oil Softgels
85
See all products →

Evidence notes

Strong mechanistic basis for enhanced bioavailability of phospholipid-bound omega-3s vs. triglyceride forms (several comparative RCTs). Direct phospholipid supplementation shows moderate evidence for liver and cognitive support, though often studied as part of multicomponent supplements.

Grade B: Some human trials support key claims; further confirmation needed.

Cited research for Phospholipids

Clinical studies referenced across Formulate guides that mention phospholipids. Each links to the full study page with PubMed source + the guides that cite it.

Related in Other

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.