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
Sea grape (Caulerpa lentillifera and C. racemosa) is a nutrient-dense marine macroalgae rich in polyphenolic antioxidants, vitamins A, C, and E, and minerals that upregulate PGC-1α to enhance mitochondrial biogenesis, glucose homeostasis, and lipid metabolism—mechanisms supported by broader polyphenol-diabetes research (PMID 25174925). Often called "longevity seaweed" in Okinawan cuisine, sea grapes deliver cardiovascular, anti-inflammatory, and skin-protective benefits through anthocyanins and caulerpin compounds, paralleling the phenolic antioxidant pathways documented in berry and fruit intervention studies (PMID 29662448; PMID 28608832).
Reported Benefits (Provisional)
Origin & History
Sea Grape (Coccoloba uvifera) is a salt-tolerant tree native to coastal regions of the Caribbean, Central America, and Florida. It yields clusters of tart-sweet fruits traditionally used for food, medicine, and preservation. These fruits are valued for their rich antioxidant profile and dietary fiber, supporting immune, digestive, and cardiovascular health.
Research Narrative (Provisional)
Dragan et al. (2015) in Current Medicinal Chemistry (PMID 25174925) reviewed polyphenol-rich natural products for diabetes treatment, confirming that phenolic compounds—including those abundant in sea grapes—improve insulin sensitivity and glucose uptake through AMPK and PGC-1α signaling. Zhao et al. (2017) in Nutrients (PMID 28608832) demonstrated that polyphenol- and potassium-rich fruits reduce cardiovascular risk factors such as hypertension and LDL oxidation, mechanisms directly relevant to sea grape's mineral and antioxidant profile. Olas (2018) in Frontiers in Pharmacology (PMID 29662448) established that berry-type phenolic antioxidants—structurally analogous to sea grape polyphenols—exert anti-platelet, anti-inflammatory, and vasodilatory effects in human and animal models. Mohamed et al. (2020) in Evidence-Based Complementary and Alternative Medicine (PMID 32655657) showed that marine- and grape-derived antioxidants significantly reduced total cholesterol, triglycerides, and LDL in hyperlipidemic rats, supporting sea grape's lipid-lowering potential.
Preparation & Dosage
Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.
Nutritional Profile
- Vitamins: C, A (trace) - Minerals: Potassium, Magnesium, Calcium - Dietary Fiber - Phytochemicals: Anthocyanins, Polyphenols, Flavonoids (quercetin, kaempferol), Phenolic acids
Reported Mechanism (Provisional)
Sea grape polyphenolic compounds—including caulerpin, caulerpenyne, and gallic acid derivatives—upregulate PGC-1α (Peroxisome Proliferator-Activated Receptor-γ Coactivator 1-alpha), a master transcriptional coactivator that stimulates mitochondrial biogenesis, fatty acid β-oxidation, and oxidative phosphorylation in skeletal muscle and liver tissue. These polyphenols also activate the AMPK (AMP-activated protein kinase) pathway, which phosphorylates ACC (acetyl-CoA carboxylase) to inhibit de novo lipogenesis while increasing GLUT4 translocation and cellular glucose uptake, thereby improving insulin sensitivity (PMID 25174925). Concurrently, sea grape anthocyanins and ascorbic acid scavenge reactive oxygen species (ROS) by upregulating endogenous antioxidant enzymes—superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx)—via Nrf2/ARE (nuclear factor erythroid 2-related factor 2/antioxidant response element) signaling (PMID 29662448). The high potassium content further promotes cardiovascular protection by activating endothelial nitric oxide synthase (eNOS), increasing NO bioavailability, and inducing vasodilation to reduce systemic blood pressure (PMID 28608832).
Clinical Narrative (Provisional)
Preclinical rat studies show sea grape extract at 150 mg/kg significantly reduces blood glucose and total cholesterol while increasing PGC-1α levels (p<0.05). A 21-day study using sea grape powder demonstrated significant decreases in Lee's index, total cholesterol, triglycerides, and LDL-cholesterol comparable to orlistat. A randomized, double-blind, placebo-controlled human trial (NCT05037591) involving 70 obese men over 4 weeks is ongoing, with results pending publication. Current evidence remains primarily preclinical, requiring completed human trials for clinical validation.
Also Known As
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