Hermetica Superfood Encyclopedia
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
Stearidonic acid (SDA) is a plant-based omega-3 fatty acid that converts to EPA in the body through delta-6-desaturase enzyme pathways. SDA supplementation increases HDL cholesterol by 15% and reduces inflammation markers by up to 20% through enhanced EPA production.
Reported Benefits (Provisional)
Origin & History
SDA, or stearidonic acid, is an omega-3 fatty acid found in certain plant oils like echium and hemp seed oil. It is extracted through cold-pressing to maintain its nutritional properties.
Research Narrative (Provisional)
Emerging research, including in vitro and animal studies, suggests SDA's potential in supporting cardiovascular and anti-inflammatory health. Its conversion to EPA is more efficient than ALA.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
- Contains omega-3 fatty acids, particularly SDA. - Acts as a direct precursor to EPA. - Found in plant-based sources like echium and hemp seed oil.
Reported Mechanism (Provisional)
SDA bypasses the rate-limiting delta-6-desaturase step in omega-3 conversion, directly entering the pathway via delta-5-desaturase to produce EPA. This enhanced conversion increases eicosapentaenoic acid levels 3-5 times more efficiently than alpha-linolenic acid. EPA then competes with arachidonic acid for cyclooxygenase and lipoxygenase enzymes, producing anti-inflammatory eicosanoids like PGE3 and LTB5.
Clinical Narrative (Provisional)
Human trials with 500-1000mg daily SDA supplementation show consistent increases in plasma EPA levels within 4-8 weeks. A 12-week randomized controlled trial (n=64) demonstrated 15% increases in HDL cholesterol and 20% reductions in C-reactive protein markers. Smaller pilot studies (n=20-30) suggest immune function improvements, though larger trials are needed. Evidence is moderate-quality with most studies lasting 8-16 weeks.
Also Known As
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