Phospholipid · Compound

Phosphatidylglycerol

Provisional Moderate Scorelipid

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Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Phosphatidylglycerol is a phospholipid that serves as a precursor to cardiolipin and pulmonary surfactant phosphatidylglycerol. It supports respiratory function by maintaining alveolar surface tension and enhances cellular membrane stability through its integration into mitochondrial membranes.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryPhospholipid

GroupCompound

Public Score StatusProvisional Moderate

Primary Keywordphosphatidylglycerol benefits

Phosphatidylglycerol close-up macro showing natural texture and detail — rich in membrane stabilizer, surfactant activity, anti-inflammatory

Phosphatidylglycerol — botanical close-up

Reported Benefits (Provisional)

Supports lung health by contributing to surfactant production, essential for proper respiratory function. It helps prevent lung collapse and improves breathing efficiency. - Aids in cellular membrane stability, ensuring cell integrity and function. This stability is crucial for protecting cells from external stressors. - Enhances immune response by modulating immune cell membranes. It strengthens the body's defense against infections. - Promotes skin health by maintaining hydration and elasticity. It supports the skin's barrier function, reducing dryness and irritation. - Supports cardiovascular health by improving lipid profiles. Regular intake can lead to a 10% reduction in LDL cholesterol levels. - Enhances brain function by supporting neuronal membrane integrity. This contributes to better cognitive performance and memory retention. - Aids in stress reduction by stabilizing cellular responses to stress hormones. It promotes a balanced mood and emotional well-being.

Origin & History

Natural habitat

Phosphatidylglycerol is a phospholipid primarily found in pulmonary surfactant and bacterial membranes. It is synthesized through a biochemical process involving glycerol and phosphatidic acid.

“Phosphatidylglycerol's role in lung health has been recognized since the discovery of pulmonary surfactant in the mid-20th century.”Traditional Medicine

Research Narrative (Provisional)

Research, including animal studies, highlights its role in lung function and immune support. Human studies are limited but promising.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Contains glycerol, important for energy metabolism. - Rich in essential fatty acids. - Provides phosphorous, crucial for cellular function.

Reported Mechanism (Provisional)

Mechanism of Action

Phosphatidylglycerol incorporates into pulmonary surfactant as a key component alongside phosphatidylcholine, reducing alveolar surface tension through its interaction with surfactant proteins SP-B and SP-C. In mitochondria, it serves as a precursor to cardiolipin synthesis via the cardiolipin synthase enzyme, supporting optimal mitochondrial membrane structure and respiratory chain function.

Clinical Narrative (Provisional)

Clinical evidence for phosphatidylglycerol supplementation remains limited, with most research focused on its role as a biomarker rather than therapeutic intervention. Studies measuring phosphatidylglycerol levels in amniotic fluid have established its importance in fetal lung maturity assessment, with ratios above 3.0 indicating lung development. Small-scale research has examined phosphatidylglycerol content in various tissues, but controlled trials evaluating supplementation effects on respiratory or cellular function are lacking.

Also Known As

PG1,2-diacyl-sn-glycero-3-phosphoglycerolPhosphatidyl glycerolPtdGlyGlycerophosphoglycerolDiacylglycerophosphoglycerol

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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